"

Answer Key 9.2

  1. 4
  2. −5
  3. 51253
    553
  4. 21253
    523
  5. 3643
    433
  6. 383
    233
  7. 46164
    4264
    ±864
  8. 83164
    8234
    ±1634
  9. 67164
    6274
    ±1274
  10. 53814
    5334
    ±1534
  11. 6881x4xy4y3z24
    63xy8xy3z24
    ±18xy8xy3z24
  12. 6581a4ab8c4
    63ab25ac4
    ±18ab25ac4
  13. 732n3p2p5q55
    2pq7n3p25
  14. 332x3y5yz55
    2yz3x3y5
  15. 732p5q10r155
    2pq2r375
  16. 464x6y6z6z6
    ±2xyz4z6
  17. 37128rs7t147
    32st27r7
    6st27r7
  18. 83128b7bc7d67
    82bc3bd67
    16bc3bd67