12x^2/x^4+36

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Solution for 12x^2/x^4+36 equation: 


D( x )

x^4 = 0

x^4 = 0

x^4 = 0

1*x^4 = 0 // : 1

x^4 = 0

x = 0

x in (-oo:0) U (0:+oo)

(12*x^2)/(x^4)+36 = 0

12*x^-2 = -36 // : 12

x^-2 = -3

-2 < 0

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

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

-1/3 = x^2

x belongs to the empty set

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