/ 2 2\ (5*z + 2*y)*\25*z - 10*z*y + 4*y /
(5*z + 2*y)*(25*z^2 - 10*z*y + 4*y^2)
/ / ___\\ / / ___\\ / 5*z\ | 5*z*\1 - I*\/ 3 /| | 5*z*\1 + I*\/ 3 /| 1*|y + ---|*|y - -----------------|*|y - -----------------| \ 2 / \ 4 / \ 4 /
((1*(y + 5*z/2))*(y - 5*z*(1 - i*sqrt(3))/4))*(y - 5*z*(1 + i*sqrt(3))/4)
(2.0*y + 5.0*z)*(4.0*y^2 + 25.0*z^2 - 10.0*y*z)
(2.0*y + 5.0*z)*(4.0*y^2 + 25.0*z^2 - 10.0*y*z)