4. x 5 * x 2 x 5+2 x7x7 Example 1 Simplify.

5. a) 2 3 2 2 = b 10 2525 b) b 7 b 3 = Example 2 Simplify.

7. Quotient of Powers Example 3 Write out as a product of factors. Simplify.

8. Quotient of Powers Notice what we could have done using the property.

9. Simplify. Write out as a product of factors. Example 4

10. Quotient of Powers Notice what we could have done using the property.

11. Simplify top 1 st. Example 5 Simplify.

12. Example 6

14. (x3)4(x3)4 x 3*4 x 12 Example 7 Simplify.

15. (y2)5(y2)5 y 2*5 y 10 Example 8 Simplify.

17. Use your calculator to evaluate. a)5 0 b)(-2) 0 c)(.45) 0 d)(1/7) 0 e)(1239) 0 f)0 0 What can you conclude? A nonzero number to the zero power equals one. Example 9

19. Negative exponents move terms to the other part of the fraction. (reciprocal) Evaluate. 4 is downstairs. Where will it move? Example 10

20. x is downstairs. Where will it move? Example 11 Evaluate.

21. -9 is upstairs. Where will it move? Example 12 Evaluate.

22. Example 13 Simplify.

24. (7b 3 ) 2 7 2 b 3*2 49 b 6 Example 14 Evaluate.

25. Example 4: Example 15 Evaluate.

26. Example 16 Evaluate.

28. Evaluate each expression. a) b) Example 17

29. Evaluate each expression. 1) 2) 5) 6) 3) 4)Practice

30. Evaluate each expression. 1) 2)3) 4) Simplify each expression. 5) You try!!