2 2*x + 1
2*x^2 + 1
/ ___\ / ___\ | I*\/ 2 | | I*\/ 2 | |x + -------|*|x - -------| \ 2 / \ 2 /
(x + i*sqrt(2)/2)*(x - i*sqrt(2)/2)
1.0 + 2.0*x^2