3 2 x - x - x + 1
x^3 - x^2 - x + 1
(x + 1)*(x - 1)
3 2 1 + x - x - x
1 + x^3 - x - x^2
1 + x*(-1 + x*(-1 + x))
1.0 + x^3 - x - x^2
2 (-1 + x) *(1 + x)
(-1 + x)^2*(1 + x)