3 2 x - 3*x - x
x^3 - 3*x^2 - x
/ ____\ / ____\ | 3 \/ 13 | | 3 \/ 13 | 1*(x + 0)*|x + - - + ------|*|x + - - - ------| \ 2 2 / \ 2 2 /
((1*(x + 0))*(x - (3/2 + sqrt(13)/2)))*(x - (3/2 - sqrt(13)/2))
/ 2 \ x*\-1 + x - 3*x/
x*(-1 + x^2 - 3*x)
x^3 - x - 3.0*x^2