# Chapter 10 - Radical Expressions and Equations - Mid-Chapter Quiz - Page 619: 12

$4\sqrt5$

#### Work Step by Step

$\sqrt{80}\longrightarrow$ factor out the perfect square =$\sqrt{16\times5}\longrightarrow$ multiplication property of square roots =$\sqrt{16}\times\sqrt5\longrightarrow$ simplify =$4\sqrt5$

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