3 z + z - 10
z^3 + z - 10
3 -10 + z + z
-10 + z + z^3
(x - 2)*(x + 1 + 2*I)*(x + 1 - 2*I)
((x - 2)*(x + 1 + 2*i))*(x + 1 - 2*i)
/ 2\ -10 + z*\1 + z /
-10 + z*(1 + z^2)
-10.0 + z + z^3
/ 2 \ (-2 + z)*\5 + z + 2*z/
(-2 + z)*(5 + z^2 + 2*z)