Suggested languages for you:

Americas

Europe

Q8.

Expert-verifiedFound in: Page 288

Book edition
Student Edition

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

Pages
227 pages

ISBN
9780395977279

**Simplify**

$7\sqrt{63}$

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

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

We have to find the factors of the given number.

Separate the factors into their own square roots.

Now, we find the factors of the given number.

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

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

$=\pm 21\sqrt{7}$

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

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

94% of StudySmarter users get better grades.

Sign up for free