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Find the sum and choose the correct answer. 2n^3 + 4n^2 - 7 and -n^3 + 8n - 9 Answers vvvvvv -n3 - 4n2 - 8n - 16 n3 + 4n2 + 8n - 16 n3 + 4n2 + 8n + 16 3n3 + 4n2 + 8n - 2
(2n^3 + 4n^2 - 7) + (-n^3 + 8n - 9) = n^3 + 4n^2 + 8n - 16
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Asked 8/31/2013 1:38:23 PM
Updated 7/2/2014 10:02:52 AM
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Edited by andrewpallarca [7/2/2014 10:02:24 AM]
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(2n^3 + 4n^2 - 7) + (-n^3 + 8n - 9)

= n^3 + 4n^2 + 8n - 16
Added 7/2/2014 10:02:52 AM
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