Skills Practice

NAME

DATE

10-3

PERIOD

Skills Practice Operations with Radical Expressions

Simplify each expression.

  5 √7 7 - 2 √7 1. 7 √

2. 3 √ 13 + 7 √ 13 10 √ 13

  - 2 √5  + 8 √5  12 √5 3. 6 √5

4. √ 15 + 8 √ 15 - 12 √ 15 -3 √ 15

5. 12 √r - 9 √r 3 √ r

6. 9 √ 6a - 11 √ 6a + 4 √ 6a 2 √ 6a

8. √ 28 + √ 63 5 √ 7

√ 11

Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.

9. 4 √ 3 + 2 √ 12 8 √ 3

 20 √ 10. 8 √ 54 - 4 √6 6

11. √ 27 + √ 48 + √ 12 9 √ 3

12. √ 72 + √ 50 - √ 8 9 √ 2

 13. √ 180 - 5 √ 5 + √ 20 3 √5

14. 2 √ 24 + 4 √ 54 + 5 √ 96 36 √ 6

15. 5 √ 8 + 2 √ 20 - √ 8

 - 5 √13  + √2  16. 2 √ 13 + 4 √2

8 √ 2 + 4 √ 5

(

-3 √ 13 + 5 √ 2

)

 4 + 2 √3

 2 √ 8 + √6 17. √

(

)

 19. √ 6 3 √ 2 - 2 √3

 - 6 √ 6 √3 2

 )(4 - √ 21. (4 + √3 3)

 + √2  )( √5  + √3 ) 23. ( √8

13

(

(

 5 √ 2 - √15

)

 20. 3 √ 3 2 √ 6 + 4 √10

(

)

 22. 2 - √6

(

2

 + 12 √ 18 √2 30

10 - 4 √ 6

)(

)

 4 √  24. √ 6 + 4 √5 3 - √10

 3 √ 10 + 3 √6

Chapter 10

)

 18. √ 5 √ 10 - √3

-8 √ 2 + 14 √ 15

19

Glencoe Algebra 1

Lesson 10-3

44 - √ 11 7. √