x^2/10+x+2/3=0

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Solution for x^2/10+x+2/3=0 equation: 


x in (-oo:+oo)

(x^2)/10+x+2/3 = 0

1/10*x^2+x+2/3 = 0

DELTA = 1^2-(1/10*2/3*4)

DELTA = 11/15

DELTA > 0

x = ((11/15)^(1/2)-1)/(1/10*2) or x = (-(11/15)^(1/2)-1)/(1/10*2)

x = 5*((11/15)^(1/2)-1) or x = -5*((11/15)^(1/2)+1)

x in { -5*((11/15)^(1/2)+1), 5*((11/15)^(1/2)-1) }

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