Math

Factor and check: z^2 -12z+20=0

Asked by AnneS2 on 12 Sep 03:20

Last updated by anonymous on 13 Sep 15:24

1 Answers

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Answered by CherieS on 13 Sep 15:24

z^2 -12z+20=0

(z )(z ) ( -10)( -2)=0

(z-10) (z-2) = 0

Check:

(z-10) (z-2) = 0

(z)(z) (z)( -2) (-10)(z) (-10)(-2)=0

z^2 -2z -10z +20=0

z^2 -12z +20=0