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OpenStudy (anonymous):
Find the sum. (4n2 + 2n + 8) + (5n2 + n + 13) A. 9n4 + 3n2 + 21 B. 9n2 + 3n + 21 C. 9n2 + 2n + 21
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OpenStudy (anonymous):
B.
OpenStudy (anonymous):
You start by grouping all the common terms together: 4n2 + 2n + 8 + 5n2 + n + 13 (4n2 + 5n2) + (2n + n) + (8+13) Hence, on solving, we obtain : 9n2 + 3n + 21
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