Work Step by Step
RECALL: $a-(-b) = a+b$ Use the rule above to obtain: $=10i+4i$ Combine like terms by factoring out $i$ to obtain: $=i(10+4) \\=i(14) \\=14i$
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.