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