Work Step by Step
$(-3i)^5 = (-3)^5 \cdot i^5 = -243 \cdot i^4 \cdot i = -243 \cdot 1 \cdot i = 243i$
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.