Answer
$4\sqrt5$
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
=$4\sqrt5$
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 10 - Radical Expressions and Equations - Mid-Chapter Quiz - Page 619: 12
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