Question

Help please!!! I only have 10 mins!!!

Answer 1

Remember this.
${x}^{ - a} = \frac{1}{ {x}^{a} }$
$\sqrt[a]{ {x}^{b} } = {( {x}^{b} )}^{ \frac{1}{a} }$

So,
${x}^{ - \frac{5}{3} } \\ = \frac{1}{ {x}^{\frac{5}{3} } } \\ = \frac{1}{ {({x}^5)}^{\frac{1}{3} } } \\ = \frac{1}{ \sqrt[3]{ {x}^{5} } }$