9/(x)3=-27

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Solution for 9/(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)

9/(x^3) = -27 // + 27

9/(x^3)+27 = 0

9*x^-3 = -27 // : 9

x^-3 = -3

-3 < 0

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

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

-1/3 = x^3

x^3 = -1/3 // ^ 1/3

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

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

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