2x-5/x-4+11/x-4

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Solution for 2x-5/x-4+11/x-4 equation: 


D( x )

x = 0

x = 0

x = 0

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

2*x-(5/x)+11/x-4-4 = 0

2*x-5*x^-1+11/x-4-4 = 0

2*x^1+6*x^-1-8*x^0 = 0

(2*x^2-8*x^1+6*x^0)/(x^1) = 0 // * x^2

x^1*(2*x^2-8*x^1+6*x^0) = 0

x^1

2*x^2-8*x+6 = 0

2*x^2-8*x+6 = 0

DELTA = (-8)^2-(2*4*6)

DELTA = 16

DELTA > 0

x = (16^(1/2)+8)/(2*2) or x = (8-16^(1/2))/(2*2)

x = 3 or x = 1

x in { 1, 3} 

x in { 1, 3 }

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