z^2 -17z+16=0 Factor and solve

z^2 -17z+16=0

(z )(z ) ( -16)( -1)=0

(z-16) (z-1) = 0

Solve:

(z-16)=0

z-16+16=0+16

z=16

Solve:

(z-1) = 0

z-1+1 = 0+1

z=1