-2=216/x^2

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Solution for -2=216/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)

-2 = 216/(x^2) // - 216/(x^2)

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

-216*x^-2-2 = 0

-216*x^-2 = 2 // : -216

x^-2 = -1/108

-2 < 0

1/(x^2) = -1/108 // * x^2

1 = -1/108*x^2 // : -1/108

-108 = x^2

x belongs to the empty set

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