Question

What is the standard form of `y= (x +6)(x + 5)^2`?

Answer 1

`color(indigo)("standard form is " => x^3 + 16x^2 + 85x + 150`

Explanation:

`y = (x + 6) * (x + 5)^2`

`=> (x+6) * (x^2 ^ 10x + 25)`

`=> x^3 + 6x^2 + 10x^2 + 60x + 25x + 150`

`color(indigo)(=> x^3 + 16x^2 + 85x + 150`