Answer:
see attachment
Step-by-step explanation:
The applicable property of exponents is ...
[tex]\sqrt[n]{x^m}=x^{\frac{m}{n}}[/tex]
The 4th selection uses this property directly. The 3rd selection uses the property
[tex](a^b)^c=a^{bc}[/tex]
to show that the cubes of the two expressions are equivalent. Since all the numbers involved are real numbers, this is equivalent to showing the expressions equivalent.
