College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 1 - Section 1.3 - Complex Numbers - 1.3 Exercises: 50

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. $(3-4-2)\sqrt{7}+(1-4+5)i$ $-3\sqrt{7}+2i$
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