Answer
$\sqrt d$ or $-\sqrt d$
Work Step by Step
When squared, both a number and its inverse give the same result, since multiplying two negative numbers yields a positive product.
Introductory Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-805-X
ISBN 13:
978-0-13417-805-9
Chapter 9 - Section 9.1 - Solving Quadratic Equations by the Square Root Property - Concept and Vocabulary Check - Page 631: 1
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