$ (n - 2)(n+2)(n^2+4)$
Work Step by Step
$n^4 - 16 = (n^2)^2 - 4^2 = (n^2 - 4)(n^2 + 4) = ((n)^2 - 2^2)(n^2 + 4) = (n - 2)(n+2)(n^2+4)$
You can help us out by revising, improving and updating this answer.Update this answer
After 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.