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07-08-2017
Mathematics

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What is the factorization?

-3x^3+15x^2+42x

A. 3(x+7)(x+2)
B. 3(x^2)(x+2)
C. -3x(x+7)(x-2)
D. -3x(x-7)(x+2)

Respuesta :

kphung76127 kphung76127

07-08-2017

First take out the GCF
-3x(x^2-5x-14)
-3x(x-7)(x+2)
-7+2=-5
-7*2=-14

Answer: D

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