It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

It is useful to note that multiplication is short hand for addition.
When a number is added to itself over and over again, it can be written as multiplication.
7 + 7 + 7 + 7 + 7 = 35      7 is added to itself five times
   5 times 7 = 35

When working with variables, it is important to understand the notation.
The number in front of a variable, called the coefficient, indicates how many times the variable was added to itself.
3x = x + x + x           3x is read "three x"          the 'glue' holding the 3 and the x together is multiplication.
Note that when you add x's together you get the same x in your answer.

Exponents can be used as short hand for multiplication.
(2)(2)(2)(2) = 16       2 is multiplied to itself four times
  2⁴ = 16

When working with variables, the exponent indicates how many times the variable was multiplied to itself.
Coefficients also get multiplied together.
(2x)(3x)(5xy) = 30x³y   multiply all the numbers together, count the number of x's and count the number of y's

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables

click here for examples

When adding expressions that contain variables, the variable "part" must be the same and you keep it the same.
2xy + 5xy = 7xy       since the variable part xy is the same, just add the coefficients and keep xy the same.

5x² + 9x² = 14x^{2      since the variable part x2 was the same, add the coefficients and keep the x2}

3xy + 5x = 3xy + 5x  since the variable part is NOT the same, you can NOT add!

When multiplying variable expressions, just count the number of variables and write it as an exponent.
(2xy)(5xy) = 10x²y²      multiply coefficients and count the number of x's and y's

(5x²)(9x²) = 45x^{4         multiply coefficients and count two x's and two more x's
(5xx)(9xx) = 45x4} 

(3xy)(5x) = 15x²y         multiply the coefficients and just count the number of variables