3 2 3*x - 5*x *y - 9*x + 15*y
3*x^3 - 5*x^2*y - 9*x + 15*y
/ ___\ / ___\ / 3*x\ 1*\x + \/ 3 /*\x - \/ 3 /*|y - ---| \ 5 /
((1*(x + sqrt(3)))*(x - sqrt(3)))*(y - 3*x/5)
3 / 2\ -9*x + 3*x + y*\15 - 5*x /
-9*x + 3*x^3 + y*(15 - 5*x^2)
/ 2\ \-3 + x /*(-5*y + 3*x)
(-3 + x^2)*(-5*y + 3*x)