2-(128/x^2)=0

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Solution for 2-(128/x^2)=0 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)

2-(128/(x^2)) = 0

2-128*x^-2 = 0

-128*x^-2 = -2 // : -128

x^-2 = 1/64

-2 < 0

1/(x^2) = 1/64 // * x^2

1 = 1/64*x^2 // : 1/64

64 = x^2

x^2 = 64 // ^ 1/2

abs(x) = 8

x = 8 or x = -8

x in { 8, -8 }

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