Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 10 - Radical Expressions and Equations - Chapter Review - Page 655: 33


$=4-2\sqrt 10$

Work Step by Step

Applying the rules of radicals: $(3\sqrt 2-2\sqrt 5)(4\sqrt 2+2\sqrt 5)$ $=24+6\sqrt 10-8\sqrt 10-20$ $=4-2\sqrt 10$
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