Factor and solve: z^2 - 18z + 65 = 0

z^2 - 18z + 65 = 0

(z )(z ) ( -13)( -5)=0

(z-13) (z-5) = 0

Solve:

(z-13)=0

z-13+13=0+13

z=13

Solve:

(z-5) = 0

z-5+5 = 0+5

z=5