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

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


x in (-oo:+oo)

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

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

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

DELTA = 112/81

DELTA > 0

x = ((112/81)^(1/2)-2/9)/(1/3*2) or x = (-(112/81)^(1/2)-2/9)/(1/3*2)

x = 3/2*((112/81)^(1/2)-2/9) or x = -3/2*((112/81)^(1/2)+2/9)

x in { -3/2*((112/81)^(1/2)+2/9), 3/2*((112/81)^(1/2)-2/9) }

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