1/3x^2-1/2x-1/3

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Solution for 1/3x^2-1/2x-1/3 equation: 


x in (-oo:+oo)

(1/3)*x^2-((1/2)*x)-(1/3) = 0

(1/3)*x^2+(-1/2)*x-1/3 = 0

1/3*x^2-1/2*x-1/3 = 0

DELTA = (-1/2)^2-(-1/3*1/3*4)

DELTA = 25/36

DELTA > 0

x = ((25/36)^(1/2)+1/2)/(1/3*2) or x = (1/2-(25/36)^(1/2))/(1/3*2)

x = 2 or x = -1/2

x in { -1/2, 2 }

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