x^2/0.25-x=1.8*10^-5

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Solution for x^2/0.25-x=1.8*10^-5 equation: 


x in (-oo:+oo)

(x^2)/0.25-x = 1.8*10^-5 // - 1.8*10^-5

(x^2)/0.25-x-(1.8*10^-5) = 0

(x^2)/0.25-x-1.8*10^-5 = 0

4*x^2-x-0.000018 = 0

DELTA = (-1)^2-(-0.000018*4*4)

DELTA = 1.000288

DELTA > 0

x = (1.000288^(1/2)+1)/(2*4) or x = (1-1.000288^(1/2))/(2*4)

x = (1.000288^(1/2)+1)/8 or x = (1-1.000288^(1/2))/8

x in { (1-1.000288^(1/2))/8, (1.000288^(1/2)+1)/8 }

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