Add or subtract.(3x4 + 5x3 + 7x2 + 1) + (8x4 - 3x3 - 3x2 - 6)

A. 11x8 + 2x6 + 4x4 - 5
B. 11x4 + 2x3 + 4x2 - 5
C. -2x4 - 2x3 - 3x2 + 13
D. 17x18 - 5


Answer: B

Mathematics

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