Question

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

Answer 1

`y=-2x^3-35x-27`

Explanation:

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

`:.y=(x-x^2)(x-8)-(x+3)(x+3)(x+3)`

`:.y=-x^3+9x^2-8x-(x^3+9x^2+27x+27)`

`:.y=-x^3+9x^2-8x-x^3-9x^2-27x-27`

`:.y=-2x^3-35x-27`