X-(2/x^2)

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Solution for X-(2/x^2) equation: 


D( x )

x^2 = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

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

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

X-2*x^-2 = 0

-2*x^-2 = -X // : -2

x^-2 = X/2

-2 < 0

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

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

2*X^-1 = x^2

x^2 = 2*X^-1 // ^ 1/2

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

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

x in { 2^(1/2)*X^(-1/2), -(2^(1/2)*X^(-1/2)) }

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