Factor completely. If unfactorable, indicate that the polynomial is prime.3x2(x - 4) + 24x(x - 4) + 45(x - 4)

A. 3(x + 3)(x + 5)(x - 4)
B. (x - 4)(-4x + 9)(x + 5)
C. (x - 4)(3x + 15)(x + 3)
D. 3(x - 4)(x - 3)(x + 5)


Answer: A

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