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