3 125 - b
125 - b^3
/ ___\ / ___\ | 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))
125.0 - b^3
/ 2 \ -(-5 + b)*\25 + b + 5*b/
-(-5 + b)*(25 + b^2 + 5*b)