3/x^3-27

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Solution for 3/x^3-27 equation: 


D( x )

x^3 = 0

x^3 = 0

x^3 = 0

1*x^3 = 0 // : 1

x^3 = 0

x = 0

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

3/(x^3)-27 = 0

3*x^-3 = 27 // : 3

x^-3 = 9

-3 < 0

1/(x^3) = 9 // * x^3

1 = 9*x^3 // : 9

1/9 = x^3

x^3 = 1/9 // ^ 1/3

x = (1/9)^(1/3)

x = (1/9)^(1/3)

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