Answer
$-4+7i$
Work Step by Step
Clear the parentheses.
$(4+5i)+(-8+2i)=4+5i-8+2i$
Combine like terms.
$=-4+7i$
Hence, the solution in the standard form is $-4+7i$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Appendix A - Review - A.7 Complex Numbers; Quadratic Equations in the Complex Number System - A.7 Assess Your Understanding - Page A60: 12
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