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OpenStudy (anonymous):
Find the sum and choose the correct answer. 2n3 + 4n2 - 7 and -n3 + 8n - 9
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OpenStudy (anonymous):
add with the same exponent
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
2n3-n3+4n2+8n-7-9 n3+4n2+8n-16
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