2 2 - y - 2*y*x - 6*x
-y^2 - 2*y*x - 6*x^2
/ / ___\\ / / ___\\ | y*\-1 + I*\/ 5 /| | y*\1 + I*\/ 5 /| |x - ----------------|*|x + ---------------| \ 6 / \ 6 /
(x - y*(-1 + i*sqrt(5))/6)*(x + y*(1 + i*sqrt(5))/6)
2 2 - y - 6*x - 2*x*y
-y^2 - 6*x^2 - 2*x*y
-y^2 - 6.0*x^2 - 2.0*x*y
2 - 6*x + y*(-y - 2*x)
-6*x^2 + y*(-y - 2*x)