Answer
$256$
Work Step by Step
$(-2)^8 = (-2)^4 * (-2)^4 = 16 * 16 = 256$
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.