1. 7.2b Warm-Up
Simplify: 3 3
● ● x5y5 ● 3 2x7y6
200 3
320
3 2x12y11
100 • 2 3
64 • 5
3x6y y
4 5 3

2. 7.2b Multiplying and Dividing Radical Expressions
Objective: To learn how to multiply and divided radical expressions.
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Property: Dividing Radical Expressions n a a n n
If a and b are real numbers, then = n b n b

3. Example 4: Divide and simplify. -3 3x2 x a. -81 b. 54x8 3 2x 54 x8 -27

4. On White Board: Divide and simplify. 2x x 2x3 2x2 b. 64x15 2x a. 12x4

5. Example 5: Divide and simplify. 4y2 a. 3 b. 5 5 4y2 5 2y 5 15 5 8y3

6. On White Board: Divide and simplify. 9x2 a. 2x3 b. 4 5y 9x2 5y 3x 5y
x 10xy 5y 3x 3
36x2

7. 7.2b HOMEWORK
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8. 7.2b Guided Practice
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