1. Copyright © 2010 Pearson Education, Inc. All rights reserved Sec 9.4 - 1

2. Copyright © 2010 Pearson Education, Inc. All rights reserved Sec 9.4 - 2 Roots, Radicals, and Root Functions Chapter 9

3. Copyright © 2010 Pearson Education, Inc. All rights reserved Sec 9.4 - 3 9.4 Adding and Subtracting Radical Expressions

4. Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 9.4 - 4 9.4 Adding and Subtracting Radical Expressions Objectives 1.Simplify radical expressions involving addition and subtraction.

5. Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 9.4 - 5 9.4 Adding and Subtracting Radical Expressions Simplify Radical Expressions Involving Addition and Subtraction These cannot be combined.

6. Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 9.4 - 6 9.4 Adding and Subtracting Radical Expressions Adding and Subtracting Radicals

7. Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 9.4 - 7 9.4 Adding and Subtracting Radical Expressions Adding and Subtracting Radicals with Greater Indexes Assume that all variables represent positive numbers.

8. Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 9.4 - 8 9.4 Adding and Subtracting Radical Expressions Adding and Subtracting Radicals with Fractions

9. Copyright © 2010 Pearson Education, Inc. All rights reserved. Sec 9.4 - 9 9.4 Adding and Subtracting Radical Expressions Adding and Subtracting Radicals with Fractions Assume that all variables represent positive numbers.