3 y + 1000
y^3 + 1000
/ ___\ / ___\ (x + 10)*\x + -5 + 5*I*\/ 3 /*\x + -5 - 5*I*\/ 3 /
((x + 10)*(x - 5 + 5*i*sqrt(3)))*(x - 5 - 5*i*sqrt(3))
/ 2 \ (10 + y)*\100 + y - 10*y/
(10 + y)*(100 + y^2 - 10*y)
1000.0 + y^3