-2x-1/x-1=x+1

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


D( x )

x = 0

x = 0

x = 0

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

-2*x-(1/x)-1 = x+1 // - x+1

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

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

-3*x^1-1*x^-1-2*x^0 = 0

(-3*x^2-2*x^1-1*x^0)/(x^1) = 0 // * x^2

x^1*(-3*x^2-2*x^1-1*x^0) = 0

x^1

-3*x^2-2*x-1 = 0

-3*x^2-2*x-1 = 0

DELTA = (-2)^2-(-3*(-1)*4)

DELTA = -8

DELTA < 0

x in { } 

x belongs to the empty set

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