9x^3-48x^2-9x/9

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Solution for 9x^3-48x^2-9x/9 equation: 


x in (-oo:+oo)

9*x^3-(48*x^2)-((9*x)/9) = 0

9*x^3-48*x^2-x = 0

9*x^3-48*x^2-x = 0

x*(9*x^2-48*x-1) = 0

9*x^2-48*x-1 = 0

DELTA = (-48)^2-(-1*4*9)

DELTA = 2340

DELTA > 0

x = (2340^(1/2)+48)/(2*9) or x = (48-2340^(1/2))/(2*9)

x = (6*65^(1/2)+48)/18 or x = (48-6*65^(1/2))/18

x = 0

x = 0

x in { (48-6*65^(1/2))/18, (6*65^(1/2)+48)/18, 0 }

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