Garrett100 Garrett100

18-04-2016
Mathematics

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rewrite the expression below -2a(a+b-5)+3(-5a+2b)+b(6a+b-8)

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Аноним Аноним

18-04-2016

-2a(a+b-5)+3(-5a+2b)+b(6a+b-8)=-2a²-2ab+10a-15a+6b+6ab+b²-8b=
=-2a²+(-2ab+6ab)+(10a-15a)+(6b-8b)+b²=
=-2a²+4ab-5a-2b+b²

Answer: -2a²+4ab-5a-2b+b²

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