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