Factor completely. If the polynomial cannot be factored, say it is prime.(x + 7)2 - 17(x + 7) + 72

A. (x + 16)(x + 15)
B. (x - 2)(x - 1)
C. (x2 - 7x + 9)(x2 - 7x + 8)
D. (x2 + 7x - 9)(x2 + 7x - 8)


Answer: B

Mathematics

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