Find the product: (x+4)(x−4)(x + 4)(x - 4)(x+4)(x−4)
x2−16x^2 - 16x2−16
x2+8x−16x^2 + 8x - 16x2+8x−16
x2+16x^2 + 16x2+16
(x−4)2(x-4)^2(x−4)2