1. 7.2 Multiplying and Dividing Radical Expressions

2. PRODUCT OF RADICALS RULE
Note: a and b MUST be real numbers to use this property for multiplying real numbers

3. Let’s try some

4. Multiply and Simplify 1. 2. 3.

5. QUOTIENT OF RADICALS RULE

6. RATIONALIZING a DENOMINATOR
How to rationalize
If there is a radical in the bottom, then you must rationalize it.

7. Rationalize Example

8. twice instead of just once???
Another Example
Why do we rationalize
twice instead of just once???

9. Let’s try some . . . (Be sure to rationalize the denominator)