/ ___\ / ___\
| 5 5*I*\/ 3 | | 5 5*I*\/ 3 |
1*(b - 5)*|b + - + ---------|*|b + - - ---------|
\ 2 2 / \ 2 2 /
((1*(b - 5))*(b + (5/2 + 5*i*sqrt(3)/2)))*(b + (5/2 - 5*i*sqrt(3)/2))
/ 2 \ -(-5 + b)*\25 + b + 5*b/
-(-5 + b)*(25 + b^2 + 5*b)