Question

How do you factor `9b - 16b ^ { 3}`?

Answer 1

`b[(3-4b)(3+4b)]`

Explanation:

`9b - 16b^2`

`b(9 - 16b^2)`

`b(3^2 - 4b^2)`

`b(3^2 - 4b^2)`

`:. b[(3-4b)(3+4b)]`