2x-4/x^4

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Solution for 2x-4/x^4 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)

2*x-(4/(x^4)) = 0

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

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

2*x*(1-2*x^-5) = 0

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

x^-5 = 1/2

-5 < 0

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

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

2 = x^5

x^5 = 2 // ^ 1/5

x = 2^(1/5)

2*x = 0

2*x = 0 // : 2

x = 0

x in { 0} 

x = 2^(1/5)

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