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Mathematics 21 Online
OpenStudy (anonymous):

Please help!! Will fan and medal!!!! Question attached in comments.

OpenStudy (anonymous):

@jhonyy9

jhonyy9 (jhonyy9):

-7a^4 +3a^3 +3a^4 = -4a^4 +3a^3

jhonyy9 (jhonyy9):

but do you understand it why - how and ???

OpenStudy (anonymous):

You distribute the first a^3 into the () then simplify?

OpenStudy (anonymous):

@jhonyy9

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