-2/x-4=4/1-x

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Solution for -2/x-4=4/1-x equation: 


D( x )

x = 0

x = 0

x = 0

x in (-oo:0) U (0:+oo)

-2/x-4 = 4/1-x // - 4/1-x

x-2/x-(4/1)-4 = 0

x-2/x-4-4 = 0

1*x^1-2*x^-1-8*x^0 = 0

(1*x^2-8*x^1-2*x^0)/(x^1) = 0 // * x^2

x^1*(1*x^2-8*x^1-2*x^0) = 0

x^1

x^2-8*x-2 = 0

x^2-8*x-2 = 0

DELTA = (-8)^2-(-2*1*4)

DELTA = 72

DELTA > 0

x = (72^(1/2)+8)/(1*2) or x = (8-72^(1/2))/(1*2)

x = (6*2^(1/2)+8)/2 or x = (8-6*2^(1/2))/2

x in { (8-6*2^(1/2))/2, (6*2^(1/2)+8)/2} 

x in { (8-6*2^(1/2))/2, (6*2^(1/2)+8)/2 }

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