Question 886465

Rewrite each expression using rational exponents. Assume that all variables represent positive numbers.

[sqrt(x^5)}
=x^(5/2)


(cube root of 7xy)^4
=7^(5/3)x(4/3)y(4/3)

Are these right? Im not positive. Thanks for the help!
<pre>
{{{sqrt(x^5)}}} = {{{x^(5/2)}}} 
{{{(root(3, 7xy))^4}}} = {{{(7xy)^(4/3)}}}