Completely factor the polynomial.3x3 + 9x2 - 30x

A. (x - 2)(3x2 + 15)
B. 3x(x + 2)(x - 5)
C. (3x2 + 6x)(x - 5)
D. 3x(x - 2)(x + 5)

Answer: D

Mathematics

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D. x = 7 or x = 2

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A.
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C. - 
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