Answer
$\sqrt 21-2\sqrt 7$
Work Step by Step
We are given:
$\sqrt 7(\sqrt 3-2)$
$=\sqrt 7.\sqrt 3-\sqrt 7.2$
$=\sqrt 21-2\sqrt 7$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 10 - Radical Expressions and Equations - 10-3 Operations With Radical Expressions - Lesson Check - Page 629: 3
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