2-(72/x^2)=0

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Solution for 2-(72/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-(72/(x^2)) = 0

2-72*x^-2 = 0

-72*x^-2 = -2 // : -72

x^-2 = 1/36

-2 < 0

1/(x^2) = 1/36 // * x^2

1 = 1/36*x^2 // : 1/36

36 = x^2

x^2 = 36 // ^ 1/2

abs(x) = 6

x = 6 or x = -6

x in { 6, -6 }

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