Answer
$15625 \ n^{12}$
Work Step by Step
By raising each factor to the power, and multiplying the exponents, we have
$$(25n^4)^3=(25)^3n^{12}=15625 \ n^{12}
.$$
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.