nettejohnson43 nettejohnson43

17-03-2015
Mathematics

Answered

18x^2+21x-9 I need to figure out how to work this problem

Verified Answer :

buhtoiarovad buhtoiarovad

17-03-2015

18x^2 + 21x - 9. Factor out a 3.

3(6x^2 + 7x - 3). Factor the trinomial.

3(3x - 1)(2x + 3). Answer

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Anonymous Anonymous

17-03-2015

\(18x^2+21x-9=3(6x^2)+3(7x)-3(3)\\\\=3(6x^2+7x-3)=3(6x^2+9x-2x-3)\\\\=3[3x(2x)+3x(3)-1(2x)-1(3)]\\\\=3[3x(2x+3)-1(2x+3)]\\\\=\boxed{3(2x+3)(3x-1)}\)

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