1/3x^2-1/9x-2/9=0

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Solution for 1/3x^2-1/9x-2/9=0 equation: 


x in (-oo:+oo)

(1/3)*x^2-((1/9)*x)-(2/9) = 0

(1/3)*x^2+(-1/9)*x-2/9 = 0

1/3*x^2-1/9*x-2/9 = 0

DELTA = (-1/9)^2-(-2/9*1/3*4)

DELTA = 25/81

DELTA > 0

x = ((25/81)^(1/2)+1/9)/(1/3*2) or x = (1/9-(25/81)^(1/2))/(1/3*2)

x = 1 or x = -2/3

x in { -2/3, 1 }

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