x-2/x-4=0

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Solution for x-2/x-4=0 equation: 


D( x )

x = 0

x = 0

x = 0

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

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

x-2*x^-1-4 >= 0

x-2*x^-1-4 = 0

1*x^1-2*x^-1-4*x^0 = 0

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

x^1*(1*x^2-4*x^1-2*x^0) = 0

x^1

x^2-4*x-2 = 0

x^2-4*x-2 = 0

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

DELTA = 24

DELTA > 0

x = (24^(1/2)+4)/(1*2) or x = (4-24^(1/2))/(1*2)

x = (2*6^(1/2)+4)/2 or x = (4-2*6^(1/2))/2

x in { (4-2*6^(1/2))/2, (2*6^(1/2)+4)/2} 

(x-((4-2*6^(1/2))/2))*(x-((2*6^(1/2)+4)/2)) >= 0

	(-oo:(4-2*6^(1/2))/2)	((4-2*6^(1/2))/2:(2*6^(1/2)+4)/2)	((2*6^(1/2)+4)/2:+oo)
x-((4-2*6^(1/2))/2)	-	+	+
x-((2*6^(1/2)+4)/2)	-	-	+


x in (-oo:(4-2*6^(1/2))/2> U <(2*6^(1/2)+4)/2:+oo)

(-oo:(4-2*6^(1/2))/2> U <(2*6^(1/2)+4)/2:+oo)

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