Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 10 - Radical Expressions and Equations - 10-3 Operations with Radial Expressions - Practice and Problem-Solving Exercises - Page 616: 27

Answer

$-6$

Work Step by Step

Recognize that the factorization of ($a^2-b^2)$ is $(a+b)(a-b)$ $(2+\sqrt{10})(2-\sqrt{10})=(2^2-(\sqrt{10})^2)=4-10=-6$
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