2 z + 2*z + 26
z^2 + 2*z + 26
2 26 + z + 2*z
26 + z^2 + 2*z
(x + 1 + 5*I)*(x + 1 - 5*I)
(x + 1 + 5*i)*(x + 1 - 5*i)
26.0 + z^2 + 2.0*z
26 + z*(2 + z)