Question 645131
factor 6x^3 + 15x^2 + -9x
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=  3x(2x^2 + 5x -3)
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= 3x(2x^2 -x+6x -3)
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= 3x(x(2x-1)+3(2x-1))
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= 3x(2x-1)(x+3)
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Cheers,
Stan H.