"

Answer Key 1.4

  1. r+1
  2. 4x2
  3. 2n
  4. 11b+7
  5. 15v
  6. 7x
  7. 9x
  8. 7a1
  9. k+5
  10. 3p
  11. 5x9
  12. 10n9
  13. m
  14. r5
  15. 8x+32
  16. 24r+27
  17. 8n2+72n
  18. 9a+5
  19. 7k2+42k
  20. 20x2+10x
  21. 36x6
  22. 2n2
  23. 8m2+40m
  24. 18p2+2p
  25. 9x236x
  26. 32n8
  27. 9b2+90b
  28. 28r4
  29. 9b+90+5b
    14b+90
  30. 4v7+56v
    60v7
  31. 3x+12x24x2
    8x23x
  32. 8x81x+81
    89x+81
  33. 4k264k28k
    68k28k
  34. 91090a
    90a19
  35. 13549p
    49p34
  36. 10x+203
    10x+17
  37. 104n+20
    4n+10
  38. 30+6m+3m
    9m30
  39. 4x+28+8x+32
    12x+60
  40. 2r8r28r2+32r
    16r2+30r
  41. 8n488n264n
    8n272n48
  42. 54b+454b212b
    4b2+42b+45
  43. 49+21v+30100v
    79v+79
  44. 28x+42+20x20
    8x+22
  45. 20n2+10n42+70n
    20n2+80n42
  46. 123a+54a2+60a
    54a2+57a12
  47. 530k+10k80
    20k75
  48. 28x21100x100
    128x121
  49. 8n23n54n2
    4n23n5
  50. 7x235x26x
    2x26x3
  51. 5p6+1p
    4p5
  52. 3x2x7+8x
    3x2+7x7
  53. 24v2+3v2+2v
    v2+2v+2
  54. 2b8+b7b2
    7b2+3b8
  55. 42k2+82k2
    4k2+12
  56. 7a2+7a6a24a
    a2+3a
  57. x28+2x27
    3x215
  58. 37n2+6n2+3
    n2+6