3 64 + y
64 + y^3
/ ___\ / ___\ (x + 4)*\x + -2 + 2*I*\/ 3 /*\x + -2 - 2*I*\/ 3 /
((x + 4)*(x - 2 + 2*i*sqrt(3)))*(x - 2 - 2*i*sqrt(3))
64.0 + y^3
/ 2 \ (4 + y)*\16 + y - 4*y/
(4 + y)*(16 + y^2 - 4*y)