Factor completely. If the polynomial cannot be factored, say it is prime.x9 - 1

A. (x3 - 1)(x6 + x3 + 1)
B. (x + 1)(x2 - x + 1)(x6 - x3 + 1)
C. (x - 1)(x + 1)(x6 + x3 + 1)
D. (x - 1)(x2 + x + 1)(x6 + x3 + 1)


Answer: D

Mathematics

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