The expression is .

Since the given expression is an cube root function and it is not a rational inequality it is a set of all real numbers except the values which are not part in ther domain.

Let .

Numerator .

For the expression to be defined ,the denominator of the given expression cannot be equal to .

For asymptotes and point discontinuity (denominator equals ) it is easier to find where the expression is undefined. These values are not part of the domain.

Find the set of inequalities that express where is undefined.

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Let .

Set this function equal to , to know the values of 

at  and .

Therefore the domain of the expression is .

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The domain of the   is .

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