Answer
$x^{4}$
Work Step by Step
When a power is raised to a power, we multiply the two powers. Thus, we multiply 10 and 2/5 to obtain that the expression simplifies to $x^{4}$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.