Answer
$8$
Work Step by Step
First, we write both numbers under the same radical:
$\sqrt {128} \div \sqrt {2} = \sqrt {\frac{128}{2}}$
Evaluate what is under the radical sign:
$\sqrt {64}$
Take the square root of $64$ to solve:
$8$
Geometry: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281159
ISBN 13:
978-0-13328-115-6
Chapter 6 - Polygons and Quadrilaterals - Algebra Review - Page 399: 3
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