Book edition Student Edition

Author(s) Ray C. Jurgensen, Richard G. Brown, John W. Jurgensen

Pages 227 pages

ISBN 9780395977279

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Short Answer

Simplify
$7 \sqrt{63}$

The final answer is $7 \sqrt{63} = 21 \sqrt{3} .$

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Step by Step Solution

TABLE OF CONTENTS :

TABLE OF CONTENTS

Step 1. Given information:

The given expression is $7 \sqrt{63}$ .

Step 2. Concept used.

We have to find the factors of the given number.

Separate the factors into their own square roots.

Step 3. Applying the concept.

Now, we find the factors of the given number.

$7 \sqrt{63} = 7 \sqrt{{(3)}^{2} \times 7}$

$= 7 \times 3 \sqrt{7}$

$= \pm 21 \sqrt{7}$

Since square root is positive quantity so we neglect negative sign.

Therefore, the simplified form is $7 \sqrt{63} = 21 \sqrt{3} .$

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Geometry

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Short Answer

Simplify
$7 \sqrt{63}$

Step by Step Solution

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Step 2. Concept used.

Step 3. Applying the concept.

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Simplify
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