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OpenStudy (anonymous):
Solve for x, the equation 12x^3+8x^2-x-1=0. (All solutions are rational and between +-1.)
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OpenStudy (anonymous):
@jim_thompson5910 @Loser66
OpenStudy (anonymous):
(2x + 1 ) (6x^2 + x -1 ) = 0
OpenStudy (anonymous):
then ( 6x^2 + x -1 ) = 0 well equal ( 3x +1) (2x -1 ) =0 so x = -0.5 , -1/3 , =1/2
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