4801827815Andrea123f 4801827815Andrea123f

24-08-2017
Mathematics

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Geoffrey thinks that the sum of 5x2y3+6x+7y and 8y+4x3y2+2xis 9x2y3+8x+15y. Explain Geoffrey's error, and find the correct sum.

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Carmenleann Carmenleann

24-08-2017

He subtracted instead of added

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