x^2-111/x^4-x^2-72

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Solution for x^2-111/x^4-x^2-72 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)

x^2-x^2-(111/(x^4))-72 = 0

x^2-x^2-111*x^-4-72 = 0

-111*x^-4 = 72 // : -111

x^-4 = -24/37

-4 < 0

1/(x^4) = -24/37 // * x^4

1 = -24/37*x^4 // : -24/37

-37/24 = x^4

x belongs to the empty set

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