Express f(x) in complete factored form.f(x) = 3x3 + 15x

A. f(x) = 3x(x + i)2
B. f(x) = x(x + )(x + i)
C. f(x) = 3x(x + i)(x - i)
D. f(x) = 3x(x + )2


Answer: C

Mathematics

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A.

B.

C.

D.

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