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Preston
Mathematics
13 February, 12:21
Factor. 2v^2-11v-63
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Joyce Warner
13 February, 12:48
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(2v + 7) (v - 9)
Step-by-step explanation:
Factors of 2· (-63) = - 126 that have a sum of - 11 are 7 and - 18, so we can rewrite the middle term to - 18v+7v. Then we can factor by grouping.
2v^2 - 18v + 7v - 63 = 2v (v - 9) + 7 (v - 9)
= (2v + 7) (v - 9)
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