2 x - 2*x - 2
x^2 - 2*x - 2
/ ___\ / ___\ \x + -1 + \/ 3 /*\x + -1 - \/ 3 /
(x - 1 + sqrt(3))*(x - 1 - sqrt(3))
2 -2 + x - 2*x
-2 + x^2 - 2*x
-2.0 + x^2 - 2.0*x
-2 + x*(-2 + x)