Divide x3−1x^3 - 1x3−1 by (x−1)(x - 1)(x−1) using polynomial division. What is the quotient?
x2−x+1x^2 - x + 1x2−x+1
x2+2x+1x^2 + 2x + 1x2+2x+1
x2+x+1x^2 + x + 1x2+x+1
x2+x−1x^2 + x - 1x2+x−1