Expand the product (x - 2)^2 (x + 2)^2. What is the product of the nonzero coefficients of the resulting expression, including the constant term?
i promise I will wait for a long interval of time before posting now so other people can get answers to their questions, again I am very sorry
(x^2 -4x + 4 ) * (x^2 + 4x +4 )
x^4 + 4x^3 + 4x^2 - 4x^3 - 16x^2 - 16x + 4x^2 + 16x + 16
x^4 - 8x^2 + 16 coefficients of 1 - 8 and constant of 16