Answer
$2+0i$
Work Step by Step
$(-2 + 4i)-(-4+4i)=-2 + 4i+4-4i=(-2+4)+(4-4)i=2+(0)i=2+0i$
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.