x=2x+6/x+5

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Solution for x=2x+6/x+5 equation: 


D( x )

x = 0

x = 0

x = 0

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

x = 2*x+6/x+5 // - 2*x+6/x+5

x-(2*x)-(6/x)-5 = 0

x-2*x-6*x^-1-5 = 0

-1*x^1-6*x^-1-5*x^0 = 0

(-1*x^2-5*x^1-6*x^0)/(x^1) = 0 // * x^2

x^1*(-1*x^2-5*x^1-6*x^0) = 0

x^1

-x^2-5*x-6 = 0

-x^2-5*x-6 = 0

DELTA = (-5)^2-(-6*(-1)*4)

DELTA = 1

DELTA > 0

x = (1^(1/2)+5)/(-1*2) or x = (5-1^(1/2))/(-1*2)

x = -3 or x = -2

x in { -3, -2} 

x in { -3, -2 }

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