14-10-2016
Mathematics

contestada

(6a-3b^2-a) + (b-4+7a^2)
Find the sum or difference

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14-10-2016

6a-3b^2-a+b-4+7a^2
goup like terms
7a^2-3b^2+6a-a+b-4
7a^2-3b^+5a-4

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