2 2*x + 3*x - 1
2*x^2 + 3*x - 1
2 -1 + 2*x + 3*x
-1 + 2*x^2 + 3*x
/ ____\ / ____\ | 3 \/ 17 | | 3 \/ 17 | |x + - - ------|*|x + - + ------| \ 4 4 / \ 4 4 /
(x + 3/4 - sqrt(17)/4)*(x + 3/4 + sqrt(17)/4)
-1 + x*(3 + 2*x)
-1.0 + 2.0*x^2 + 3.0*x