2 x + 3*x + 5
x^2 + 3*x + 5
/ ____\ / ____\ | 3 I*\/ 11 | | 3 I*\/ 11 | |x + - + --------|*|x + - - --------| \ 2 2 / \ 2 2 /
(x + 3/2 + i*sqrt(11)/2)*(x + 3/2 - i*sqrt(11)/2)
2 5 + x + 3*x
5 + x^2 + 3*x
5 + x*(3 + x)
5.0 + x^2 + 3.0*x