3 1 + 27*y
1 + 27*y^3
/ ___\ / ___\ | 1 I*\/ 3 | | 1 I*\/ 3 | 1*(x + 1/3)*|x + - - + -------|*|x + - - - -------| \ 6 6 / \ 6 6 /
((1*(x + 1/3))*(x - (1/6 + i*sqrt(3)/6)))*(x - (1/6 - i*sqrt(3)/6))
1.0 + 27.0*y^3
/ 2\ (1 + 3*y)*\1 - 3*y + 9*y /
(1 + 3*y)*(1 - 3*y + 9*y^2)