X^2-4/x-2

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Solution for X^2-4/x-2 equation: 


D( x )

x = 0

x = 0

x = 0

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

X^2-(4/x)-2 = 0

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

-4*x^-1 = -(X^2-2) // : -4

x^-1 = (2-X^2)/(-4)

-1 < 0

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

1 = x^1*((2-X^2)/(-4)) // : (2-X^2)/(-4)

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

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

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

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