Question

What is the standard form of `y= (2x-9)^3+(6x-2)^2`?

Answer 1

`y=8x^3-72x^2+462x-725`

Explanation:

`y=(2x-9)^3+(6x-2)^2`

`y=(2x-9)(2x-9)(2x-9)+(6x-2)(6x-2)`

`y=(8x^3-108x^2+486x-729)+(36x^2-24x+4)`

`y=8x^3-72x^2+462x-725`