3 x + 64
x^3 + 64
/ ___\ / ___\ 1*(x + 4)*\x + -2 + 2*I*\/ 3 /*\x + -2 - 2*I*\/ 3 /
((1*(x + 4))*(x - (2 + 2*i*sqrt(3))))*(x - (2 - 2*i*sqrt(3)))
64.0 + x^3
/ 2 \ (4 + x)*\16 + x - 4*x/
(4 + x)*(16 + x^2 - 4*x)