Simplify the following expressions using fractional exponents

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Simplify the following expressions using fractional exponents. Display your answer using fractional exponents.

$${ \sqrt[ 3 ]{x^{ 7 }} = }\text{ and }{ \sqrt[ 7 ]{x^{ 3 }} = }$$

Thanks..not sure how to approach this.

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${\Large \sqrt[ 3 ]{x^{ 7 }} = x^{7/3}} $ and ${\Large \sqrt[ 7 ]{x^{ 3 }} = x^{3/7} }$ since ${\Large \sqrt[ s ]{x}=x^{1/s}}$ and ${\Large(x^{a})^{b}=x^{ab}}$.