Math

Factor 2+2z+7z^2 =9z+5

Asked by AnneS2 on 20 Jul 05:42

Last updated by anonymous on 22 Jul 11:08

1 Answers

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Answered by CherieS on 22 Jul 11:08

2+2z+7z^2 =9z+5

7z^2+2z+2=9z+5

7z^2+2z+2-9z=9z+5-9z

7z^2-7z+2=5

7z^2-7z+2-5=5-5

7z^2-7z-3=0

7z^2-7z-3+3=0+3

7z^2-7z=3

7 (z-1) z = 3