D.2. CHAPTER 2
Exercise 1
1.,
3. 1. and 4.
5.,
7. 6. and 7.
9. 2
11. 3
13. 3, a, x
15. 7, x, x, y, y, y
17. 6
19. −1
21. 2a
23. second
25. fifth
27. second
29. third
Exercise 2
1. 10x
3. 7a
5. 6ab
7. 6.0x
9. 75.1a
11. −12.7ab
13. −x
15. 7a
17. −8ab
19. 3.6x
21. 72.7m
23. 62.6xy
25. 6x
27. 6x
29. 13.9x
31. −32.7m
33. 8x
35. 2ab
37. −23.8m
39. 4x − 2
41. −25.5ab + 104.7
43. 1.49y + 5.47
45. 2b
47. 12b − 2a − 16c − 8d
49. 5by5 − 73bx5 − 8bx4 + 23by4
51. 7.71a + 1.59y − 3.6b
53. 2x − 2w
55. 43.9xy + 14.3x − 44.7y
57. 0.04x + 400
59. 2πr2 + 2πrh
Exercise 3
1. 8
3. 64
5. 243
7. −32
9. −125
11. m7
13. x6
15. a9
17. 108
19. z2
21. 2
23. 10
25. b
27. 102
29. w6
31. p12
33. 210
35. y3
37. 4x2
39. a3x3y3
41. a3c3
43. 256a12c8
45.
47.
49.
51. 1
53. 108a3
55. c
57. 4
67. 5x−3
69. x2w4z−2
71. b2c2d−4
73.
75.
77. 64.4t2 ft
79.
Exercise 4
1. x6
3. −x5
5. 6ab2
7. 15m3n3
9. 40.8a3
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