Find the product of (x−1)(x-1)(x−1) and (x+1)(x+1)(x+1).
x2+2x−1x^2 + 2x - 1x2+2x−1
x2−2x+1x^2 - 2x + 1x2−2x+1
x2−1x^2 - 1x2−1
x2+1x^2 + 1x2+1