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: 6



Work Step by Step

$-\sqrt4=-(\sqrt 4)=-(2)=-2$ We know that $\sqrt 4=2$, because $2^{2}=4$. In this case, we are finding the opposite of $\sqrt 4$.
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