ayleanarivera ayleanarivera

22-11-2016
Mathematics

contestada

Simplify (8x2 − 1 + 2x3) − (7x3 − 3x2 + 1). I don't understand what I'm doing wrong.

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leeandrews2 leeandrews2

22-11-2016

Did you distribute the negative 1 across the second term?

8x^2-1+2x^3-7x^3+3x^2-1

The answer should be -5x^3 + 11x^2

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jacobgsimpson jacobgsimpson

22-11-2016

-5x3 + 11x2 - 2 i think this is it

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