Answer
$1+2i$
Work Step by Step
Adding the real terms together and the imaginary terms together, we obtain:
$(5-7i)+(-4+9i)$
=$(5-4)+(-7i+9i)$
=$1+2i$
Elementary Algebra
by Kaufmann, Jerome; Schwitters, Karen;
Published by
Cengage Learning
ISBN 10:
1285194055
ISBN 13:
978-1-28519-405-9
Chapter 11 - Additional Topics - Chapter 11 Review Problem Set - Page 520: 42
Update this answer!
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.
