Factor by grouping, if possible.x14 + x9 + x5 + 1

A. (x14 + 1)(x9 + 1)
B. (x5 + 1)(x9 + x5)
C. (x5 + 1)(x9 + 1)
D. (x12 + 1)(x2 + 1)


Answer: C

Mathematics

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