1.8*10^-5=x^2/0.3-x

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Solution for 1.8*10^-5=x^2/0.3-x equation: 


x in (-oo:+oo)

1.8*10^-5 = (x^2)/0.3-x // - (x^2)/0.3-x

x-((x^2)/0.3)+1.8*10^-5 = 0

x-3.33333333*x^2+1.8*10^-5 = 0

x-3.33333333*x^2+0.000018 = 0

DELTA = 1^2-(-3.33333333*0.000018*4)

DELTA = 1.00023999999976

DELTA > 0

x = (1.00023999999976^(1/2)-1)/(-3.33333333*2) or x = (-1.00023999999976^(1/2)-1)/(-3.33333333*2)

x = -0.15*(1.00023999999976^(1/2)-1) or x = 0.15*(1.00023999999976^(1/2)+1)

x in { -0.15*(1.00023999999976^(1/2)-1), 0.15*(1.00023999999976^(1/2)+1) }

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