Practice and Problem-Solving Exercises

A Practice

See Problem 1.

Simplify each expression.

9. 3 − 2 3 super negative 2 end super
10. ( − 4.25 ) 0 open negative , 4.25 , close to the
11. ( − 5 ) − 2 open negative 5 close super negative 2 end super
12. − 5 − 2 negative 5 super negative 2 end super
13. ( − 4 ) − 2 open negative 4 close super negative 2 end super
14. 2 − 6 2 super negative 6 end super
15. − 3 0 negative 3 to the
16. − 12 − 1 negative 12 super negative 1 end super
17. 1 2 0 fraction 1 , over 2 to the end fraction
18. 58 − 1 58 super negative 1 end super
19. 1.5 − 2 1.5 super negative 2 end super
20. ( − 5 ) − 3 open negative 5 close super negative 3 end super

See Problem 2.

Simplify each expression.

21. 4 a b 0 4 eh , b to the
22. 1 x − 7 fraction 1 , over x super negative 7 end super end fraction
23. 5 x − 4 5 x super negative 4 end super
24. 1 c − 1 fraction 1 , over c super negative 1 end super end fraction
25. 3 − 2 n fraction 3 super negative 2 end super , over n end fraction
26. k − 4 j 0 k super negative 4 end super . j to the
27. 3 x − 2 y fraction 3 , x super negative 2 end super , over y end fraction
28. 7 a b − 2 3 w fraction 7 eh , b super negative 2 end super , over 3 w end fraction
29. c − 5 d − 7 c super negative 5 end super . d super negative 7 end super
30. c − 5 d 7 c super negative 5 end super . d to the seventh
31. 8 2 s − 3 fraction 8 , over 2 , s super negative 3 end super end fraction
32. 7 s 5 t − 3 fraction 7 s , over 5 , t super negative 3 end super end fraction
33. 6 a − 1 c − 3 d 0 fraction 6 , eh super negative 1 end super . c super negative 3 end super , over d to the end fraction
34. 2 − 3 x 2 z − 7 2 super negative 3 end super . x squared . z super negative 7 end super
35. 12 0 t 7 u − 11 12 to the , t to the seventh . u super negative 11 end super
36. 7 s 0 t − 5 2 − 1 m 2 fraction 7 , s to the . t super negative 5 end super , over 2 super negative 1 end super . m squared end fraction

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