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OpenStudy (anonymous):
Factor 3x2 - 15x - 42.
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OpenStudy (anonymous):
(3x + 6 )(x - 7 )
OpenStudy (anonymous):
=3x^2-21x+6x-42 =3x(x-7)+6(x-7) =(3x+6)(x-7)
OpenStudy (anonymous):
the correct answer is 3 (x+2) (x-7)
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