Factor the polynomial by grouping.x3 - 9x + 4x2 - 36

A. (x - 3)2(x + 4)
B. (x2 - 9)(x + 4)
C. (x + 3)(x - 3)(x + 4)
D. prime


Answer: C

Mathematics

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A.
B.
C.
D.

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