2. Write each expression by using rational exponents.
Check It Out! Example 4
Write each expression by using rational exponents. a. b. c. 3 4 81 9 3 10 2 4 5
103
Simplify. 5 1 2
Simplify.
1000

3. Example 5A: Simplifying Expressions with Rational Exponents
Simplify each expression.
Product of Powers.
Simplify. 72 49
Evaluate the Power.
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4. Example 5B: Simplifying Expressions with Rational Exponents
Simplify each expression.
Quotient of Powers.
Simplify.
Negative Exponent Property. 1 4
Evaluate the power.

5. Example 5B Continued
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6. Check It Out! Example 5a
Simplify each expression.
Product of Powers.
Simplify. 6
Evaluate the Power.
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7. Simplify each expression.
Check It Out! Example 5b
Simplify each expression.
(–8)– 1 3 1
(–8) 3
Negative Exponent Property. 1 2 –
Evaluate the Power.
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8. Check It Out! Example 5c
Simplify each expression.
Quotient of Powers. 52
Simplify.
Evaluate the power. 25
Check Enter the expression in a graphing calculator.