Answer
$14i$
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 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.