-1+(4x/x^4)

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Solution for -1+(4x/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)

(4*x)/(x^4)-1 = 0

4*x^-3 = 1 // : 4

x^-3 = 1/4

-3 < 0

1/(x^3) = 1/4 // * x^3

1 = 1/4*x^3 // : 1/4

4 = x^3

x^3 = 4 // ^ 1/3

x = 4^(1/3)

x = 4^(1/3)

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