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Factor Z squared minus 4Z -21

Factor Z squared minus 4Z -21
asked 64.7k views
1 vote
Factor Z squared minus 4Z -21

asked
User Narutokk
by
7.7k points

1 Answer

6 votes


z^2-4z-21=z^2+3z-7z-21=z(z+3)-7(z+3)=(z-7)(z+3)

answered
User Simply Ged
by
7.9k points
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