Question

What is the standard form of `y= (x-x^2)(x+8) -(x+8)^3`?

Answer 1

`-2x^3 - 31x^2 - 184x - 512`

Explanation:

`(x - x^2) (x + 8) - (x + 8)^3`

`-(x + 8) [x^2 - x + (x + 8)^2]`

`-(x + 8) (x^2 - x + x^2 + 16x + 64)`

`-(x + 8) (2x^2 + 15x + 64)`

`-2x^3 - 31x^2 - 184x - 512`