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OpenStudy (anonymous):
3x + 2x2 - 9= ?
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OpenStudy (anonymous):
2x^2+3x-9=0 2x^2+6x-3x-9=0 2x(x+3)-3(x+3)=0 (2x-3)(x+3)=0 2x=3 x=3/2 or x=-3
OpenStudy (anonymous):
2x^2-6x+3x-9=0 factor that down you will get (2x-3)(x+3) solve :)
OpenStudy (anonymous):
2x2 + 3x - 9 = (x + 3) ( 2x - 3) = 0 x = -3 , x = 2/3
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