/ ___\ / ___\
| 1 I*\/ 3 | | 1 I*\/ 3 |
1*(x + 1/4)*|x + - - + -------|*|x + - - - -------|
\ 8 8 / \ 8 8 /
((1*(x + 1/4))*(x - (1/8 + i*sqrt(3)/8)))*(x - (1/8 - i*sqrt(3)/8))
/ 2\ (1 + 4*x)*\1 - 4*x + 16*x /
(1 + 4*x)*(1 - 4*x + 16*x^2)