Add or subtract horizontally.(2n5 + 4n3 + 3) + (5n5 + 2n3 + 6)

A. 7 + 6n5 + 9n3
B. 8n5 + 4n3 + 10
C. 7n5 + 6n3 + 9
D. 22n8

Answer: C

Mathematics

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