/ ___\ / ___\ | 1 I*\/ 3 | | 1 I*\/ 3 | 1*(x + 1)*(x + 0)*|x + - - + -------|*|x + - - - -------| \ 2 2 / \ 2 2 /
(((1*(x + 1))*(x + 0))*(x - (1/2 + i*sqrt(3)/2)))*(x - (1/2 - i*sqrt(3)/2))
2 / 2 \ 3*y *(1 + y)*\1 + y - y/
3*y^2*(1 + y)*(1 + y^2 - y)