2 3*x - 2*x + 7
3*x^2 - 2*x + 7
2 7 - 2*x + 3*x
7 - 2*x + 3*x^2
/ ___\ / ___\ | 1 2*I*\/ 5 | | 1 2*I*\/ 5 | |x + - - + ---------|*|x + - - - ---------| \ 3 3 / \ 3 3 /
(x - 1/3 + 2*i*sqrt(5)/3)*(x - 1/3 - 2*i*sqrt(5)/3)
7.0 + 3.0*x^2 - 2.0*x
7 + x*(-2 + 3*x)