Question

Which binomial is a factor of 9x2 - 64?

COM
3x - 8
9x - 32
3x + 32
9x + 8

Answer 1

First factor the 2nd degree polynomial.

`9x^2-64=(3x-8)(3x+8)`

We find that polynomial is factored to two binomials:

• 
  `3x-8`
• 
  `3x+8`

Hope this helps.

Answer 2

3x - 8

Explanation:

9x² - 64 is a perfect square binomial

3x - 8 and 3x + 8 are the factors