3 8 - x
8 - x^3
/ ___\ / ___\ (x - 2)*\x + 1 + I*\/ 3 /*\x + 1 - I*\/ 3 /
((x - 2)*(x + 1 + i*sqrt(3)))*(x + 1 - i*sqrt(3))
8.0 - x^3
/ 2 \ -(-2 + x)*\4 + x + 2*x/
-(-2 + x)*(4 + x^2 + 2*x)