X^2-X-5/10

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Solution for X^2-X-5/10 equation: 


X in (-oo:+oo)

X^2-X-(5/10) = 0

X^2-X-1/2 = 0

X^2-X-1/2 = 0

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

DELTA = 3

DELTA > 0

X = (3^(1/2)+1)/(1*2) or X = (1-3^(1/2))/(1*2)

X = (3^(1/2)+1)/2 or X = (1-3^(1/2))/2

X in { (1-3^(1/2))/2, (3^(1/2)+1)/2 }

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