15x-5/18x^3-6x^2

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Solution for 15x-5/18x^3-6x^2 equation: 


x in (-oo:+oo)

15*x-((5/18)*x^3)-(6*x^2) = 0

(-5/18)*x^3-6*x^2+15*x = 0

15*x-5/18*x^3-6*x^2 = 0

x*(15-5/18*x^2-6*x) = 0

15-5/18*x^2-6*x = 0

DELTA = (-6)^2-(-5/18*4*15)

DELTA = 158/3

DELTA > 0

x = ((158/3)^(1/2)+6)/(-5/18*2) or x = (6-(158/3)^(1/2))/(-5/18*2)

x = -9/5*((158/3)^(1/2)+6) or x = -9/5*(6-(158/3)^(1/2))

x = 0

x = 0

x in { -9/5*((158/3)^(1/2)+6), -9/5*(6-(158/3)^(1/2)), 0 }

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