x^2-x-(1/5)=0

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Solution for x^2-x-(1/5)=0 equation: 


x in (-oo:+oo)

x^2-x-(1/5) = 0

x^2-x-1/5 = 0

x^2-x-1/5 = 0

DELTA = (-1)^2-(-1/5*1*4)

DELTA = 9/5

DELTA > 0

x = ((9/5)^(1/2)+1)/(1*2) or x = (1-(9/5)^(1/2))/(1*2)

x = ((9/5)^(1/2)+1)/2 or x = (1-(9/5)^(1/2))/2

x in { (1-(9/5)^(1/2))/2, ((9/5)^(1/2)+1)/2 }

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