Math

Factor and solve: z^2 -20z+64=0

Asked by AnneS2 on 20 Sep 05:52

Last updated by anonymous on 21 Sep 16:05

1 Answers

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Answered by CherieS on 21 Sep 16:05

z^2 -20z+64=0

(z )(z ) ( -16)( -4)=0

(z-16) (z-4) = 0

Solve:

(z-16)=0

z-16+16=0+16

z=16

Solve:

(z-4) = 0

z-4+4 = 0+4

z=4