Question

How do you write `y = 3(x+1)^2 - 27` in standard form?

Answer 1

Really, you could just expand it out.

`(x+1)^2 = (x+1)(x+1) = x^2 + 2x + 1`

`y = 3(x^2 + 2x + 1) - 27`

`y = 3x^2 + 6x + 3 - 27`

`y = 3x^2 + 6x - 24`