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Help me factor the trinomial completely -r^2+6r-9
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1 vote
Help me factor the trinomial completely

-r^2+6r-9

User Afsheen Khosravian
by
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1 Answer

5 votes
-r^2+6r-9 = - ( r^2 - 6r + 9) = - ( r - 3)^2;
User Ucefkh
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