-6/x^2-9

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Solution for -6/x^2-9 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)

-6/(x^2)-9 = 0

-6*x^-2 = 9 // : -6

x^-2 = -3/2

-2 < 0

1/(x^2) = -3/2 // * x^2

1 = -3/2*x^2 // : -3/2

-2/3 = x^2

x belongs to the empty set

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