Question

What is the standard form of `y= (x-5)(x+2)^2`?

Answer 1

`y = x^3 -x^2-15x -20`

Explanation:

Expand the equation to get rid of the brackets
`y = (x-5)(x^2 + 4x +4)`
`y= (x^3 +4x^2 +4x - 5x^2 -20x - 20)`
`y = x^3 -x^2-15x -20`