Answer
$-3\sqrt{7}+2i$
Work Step by Step
Distribute signs to parentheses.
$3\sqrt{7}-4\sqrt{7}+i-4i-2\sqrt{7}+5i$
Collect like terms, and add or subtract.
$(3-4-2)\sqrt{7}+(1-4+5)i$
$-3\sqrt{7}+2i$
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter 1 - Section 1.3 - Complex Numbers - 1.3 Exercises - Page 103: 50
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