# How do you factor #x^16-81#?

##### 3 Answers

Jul 14, 2017

#### Answer:

#### Explanation:

When we solve

Jul 14, 2017

#### Answer:

As the difference of two squares

#### Explanation:

81 can be consider the square of

when the binomials of two squares are multiplied as alternatively positive and negative terms the middle term falls out.

Jul 14, 2017

#### Answer:

#### Explanation:

using difference of squares

using DoS on the second bracket