I do not know this I need sum help with it plzz

Which graph represents the parent function of y=(x+2)(x-2)

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12