5/x^2+11

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Solution for 5/x^2+11 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)

5/(x^2)+11 = 0

5*x^-2 = -11 // : 5

x^-2 = -11/5

-2 < 0

1/(x^2) = -11/5 // * x^2

1 = -11/5*x^2 // : -11/5

-5/11 = x^2

x belongs to the empty set

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