(5x2 + 5) - (3x2 + 1) + (x2 + 2x)
= 5x2 + 5 - 3x2 - 1 + x2 + 2x
Rearranging to collect like-terms:
= (5x2 - 3x2 + x2) + 2x + (5 - 1)
= 3x2 + 2x + 4
Nick Y.
asked • 02/20/15how to solve attached
http://assets.openstudy.com/updates/attachments/54e7c765e4b08080d2e478e8-nickymail48-1424476031871-13.png
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