Algebra 1

by Hall, Prentice

Published by Prentice Hall

ISBN 10: 0133500403

ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-6 Multiplying and Dividing Real Numbers - Lesson Check - Page 42: 7

Answer

a) 2 b) 1

Work Step by Step

49 has two square roots since $7^2$ and $(-7)^2$ both equal 49. 0 has only one square root since 0 has no opposite value.

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