2 x - x + 12
x^2 - x + 12
2 12 + x - x
12 + x^2 - x
/ ____\ / ____\ | 1 I*\/ 47 | | 1 I*\/ 47 | |x + - - + --------|*|x + - - - --------| \ 2 2 / \ 2 2 /
(x - 1/2 + i*sqrt(47)/2)*(x - 1/2 - i*sqrt(47)/2)
12.0 + x^2 - x
12 + x*(-1 + x)