SOLUTION: -4n2-16n+9

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Question 548283: -4n2-16n+9
Answer by mananth(16946) About Me  (Show Source):
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-4n2-16n+9
-4n^2-18n+2n+9
-2n(2n+9)+1(2n+9)
(2n+9)(1-2n)