1. Do Now: Evaluate each expression.
42 =
(32)3 =
34 ∙ 33 =
(-2)3 =
2 ∙ 52 =

2. 8.2: Zero and Negative Exponents
Objective: evaluate powers that have zero or negative exponents
Homework:
p #22-26, 30-34, 42-44, evens

3. Properties of Zero & Negative Exponents
Evaluate
Definition
x0 =
x-n = 1

4. Evaluate each expression.
50 =
00 =
(-2)0 =

5. Evaluate the expression.
2-2 = h
(-9)-2 = A a

6. Evaluate the expression.
6-4 · 64 =
(2-3)-2 =
(-3 · 2)-2 =
42 · 4-3 =
(3-1)-2 =
(2 · 5)-2 =

7. Use a calculator to evaluate the expression.
(2-2)4 =
7-3 =
6-2 · 6-1 =
(33)-2 =

8. Rewrite the expression with positive exponents.
2x-2y-3 =
2x-3y3 =
a = a
(5a)-2 =
(5c)-3 =