Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 7 - Section 7.7 - Complex Numbers - Exercise Set: 25


$2\sqrt 2$

Work Step by Step

$\frac{\sqrt (-80)}{\sqrt (-10)}=\sqrt (\frac{80}{10})=\sqrt 8=\sqrt (4\times2)=2\sqrt 2$ We know that $\sqrt 4=2$, because $2^{2}=4$.
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