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factor by grouping 7a^3+7ab^2+4a^2b+4b^3
7a^3+7ab^2+4a^2b+4b^3 =7a(a^2+b^2)+4b(a^2+b^2) =(7a+4b)(a^2+b^2)
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Asked 2/19/2013 9:30:01 AM
Updated 5/9/2015 10:56:01 PM
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7a^3+7ab^2+4a^2b+4b^3
=7a(a^2+b^2)+4b(a^2+b^2)
=(7a+4b)(a^2+b^2)
Added 5/9/2015 10:56:01 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [5/10/2015 9:04:28 AM]
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