1. Find the sum. (4n2 + 2n + 8) + (5n2 + n + 13)

A. 9n2 + 3n + 21

B. 9n4 + 3n2 + 21

C. 9n2 + 2n + 21

2. Find the sum. (2x2 - 5x + 2) + (x2 - 2x + 5)

A. 3x2 - 7x + 7

B. 3x2 - 3x + 7

C. 2x2 + 3x + 7

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