1. Do Now 10/31/11
In your notebook on a new page, complete the activity on page 193 in the textbook. Fill in the 2 tables in the “Investigate” section. Then complete the “Draw Conclusions” questions 1-4.

2. Objective
multiply and divide exponents

3. Section 4.5 “Rules of Exponents”
Complete the activity on page 193 in the textbook. Fill in the 2 tables in the “Investigate” section. Then complete the “Draw Conclusions” questions 1-4.
Can you think of the rules for exponents?

4. 2 4 POWER two to the fourth power REVIEW
an expression that represents repeated multiplication. 4
Product 2
EXPONENT
Words
two to the
fourth power
BASE

5. ( ) REVIEW Evaluate the expression. 3. d4 when d = 1 3
1. x3 when x = 8
2. k² when k = 2.5
SOLUTIONS
1. x3 = 83
2. k² = 2.5² =
= (2.5)(2.5)
= 512
= 6.25
3. d4 =
( ) 1 3 4 = 1 3 = 1 81

6. Multiplying Exponents
To multiply two powers with the SAME
base, add their exponents.

7. Evaluate the expressions.1) 2) 3) 4)

8. Dividing Exponents
To divide two powers with the SAME base, subtract their exponents (numerator minus denominator).

9. Evaluate the expressions.1) 2) 3)

10. (1) Product of Powers Property
Try It Out...
(1) Product of Powers Property

11. Try It Out...