Write the following as a radical expression.

Answer:
see explanation
Step-by-step explanation:
Using the rule of exponents/ radicals
[tex]a^{\frac{m}{n} }[/tex] = [tex]\sqrt[n]{a^{m} }[/tex]
Given
[tex]z^{\frac{3}{8} }[/tex]
= [tex]\sqrt[8]{z^{3} }[/tex]