1. 7.2a Warm-Up 1. 150 = 52(?) 2. x5 = (?)2(x) 3. 3a3b4 = (?)3(3b) 6 ab
Find the missing factor:
= 52(?) 2. x5 = (?)2(x) 3. 3a3b4 = (?)3(3b) 6 ab x2

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

3. Multiply. Simplify if possible.
Example 1:
Multiply. Simplify if possible. 3 3
a ● b ● c ● 16
-64 3
-64 36
Not
Possible 3
(-4)3 6 -4

4. Multiply. Simplify if possible.
On white board:
Multiply. Simplify if possible. 3
b ●
a ● 9 3
-27 36 3
(-3)3 6 -3

5. Simplify each expression.
Example 2:
Simplify each expression. 3
a x b n8
(52 ● 2)(x2 ● x2 ● x) 3
(27 ● 2)(n3 ● n3 ● n2) 3
(33● 2)(n3 ● n3 ● n2)
5x x
3n n2 3

6. Simplify each expression.
On White Board
Simplify each expression. 3
b x4
a x4
(4 ● 5)(x2 ● x2 ) 3
(18)(x3 ● x) 2x
x x 3

7. Example 3: Multiply and simplify. 25xy8 • 5x4y3 (5•5•5)(x5)(y11)

8. 7.2a HOMEWORK
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9. 7.2a Guided Practice
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