Algebra Help: Factor By Grouping

label Mathematics
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2u^3+7u^2-12u-42

May 17th, 2015

Consider first and second terms

2u(u^2-6)+7(u^2-6)

(2u+7)(u+√6)(u-√6)

May 17th, 2015

So what would the answer be?

May 17th, 2015

The factors are 2u+7, u+√6 and u-√6

May 17th, 2015

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May 17th, 2015
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May 17th, 2015
Aug 22nd, 2017
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