Math

Factor and solve: z^2 -12z+27=0

Asked by AnneS2 on 23 Sep 05:45

Last updated by anonymous on 25 Sep 10:17

1 Answers

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Answered by CherieS on 25 Sep 10:17

z^2 -12z+27=0

(z )( z ) ( -9)( -3)=0

(z-9) (z-3) = 0

Solve:

(z-9)=0

z-9+9=0+9

z=9

Solve:

(z-3) = 0

z-3+3 = 0+3

z=3