Expand the product $(x-2)^2(x+2)^2$. What is the product of the non zero coefficients of the resulting expression, including the constant term?
(x−2)2(x+2)2
The easiest way to do this is to rearrange it as follows.
(x−2)2(x+2)2=(x−2)(x+2)∗(x−2)(x+2)
that is a good start for you.
