1. EXAMPLE 2 Evaluate exponential expressions a. 6 – 4 6 4 Product of a power property = 6 0 Add exponents. = 1 Definition of zero exponent = 6 – 4 + 4

2. EXAMPLE 2 Evaluate exponential expressions 1 256 = Evaluate power. c. 1 3 – 4 Definition of negative exponents Evaluate power. = 81 = 3 4 Power of a power property = 4 – 4 Multiply exponents. Definition of negative exponents b. (4 – 2 ) 2 1 4 = 4 = 4 – 2 ∙ 2

3. EXAMPLE 2 Evaluate exponential expressions 1 125 = Evaluate power. d. 5 – 1 5252 Quotient of powers property = 5 – 3 Subtract exponents. 1 5353 = Definition of negative exponents = 5 – 1 – 2

4. GUIDED PRACTICE for Example 2 5. 1 4 – 3 = 64 Evaluate the expression. 6. (5 – 3 ) – 1 = 125 7. (– 3 ) (– 3 ) – 5 5 = 1 8. 6 – 2 6262 1 1296 =