# Chapter 10 - Radical Expressions and Equations - Mid-Chapter Quiz - Page 632: 13

$6\sqrt 5$

#### Work Step by Step

Applying the rules of radicals: $\sqrt 10.\sqrt 18$ $=\sqrt 5.\sqrt 2.\sqrt 9.\sqrt 2$ $=(\sqrt 5.\sqrt 2).(3\sqrt 2)$ $=6\sqrt 5$

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