2 x - 6*x + 11
x^2 - 6*x + 11
/ ___\ / ___\ \x + -3 + I*\/ 2 /*\x + -3 - I*\/ 2 /
(x - 3 + i*sqrt(2))*(x - 3 - i*sqrt(2))
2 11 + x - 6*x
11 + x^2 - 6*x
11 + x*(-6 + x)
11.0 + x^2 - 6.0*x