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student18607

Quick practice 5.17

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  • eric
    2020-12-03 13:59:14
    f(3/2)=0
  • eric
    2020-12-03 13:59:58
    f(3/2)=0 and f(-2)=-21
  • eric
    2020-12-03 14:01:55
    2(3/2)^2+p(3/2)+q=0 and 2(-2)^2+p(-2)+q=-21
  • eric
    2020-12-03 14:03:45
    9/2+3p/2+q=0 and 8-2p+q=-21
  • eric
    2020-12-03 14:05:16
    3p+2q=-9...(1)
  • eric
    2020-12-03 14:06:02
    -2p+q=-29
  • eric
    2020-12-03 14:06:24
    -2p+q=-29....(2)
  • eric
    2020-12-03 14:07:17
    2*(2): -4p+2q=-58
  • eric
    2020-12-03 14:07:44
    -4p+2q=-58...(3)
  • eric
    2020-12-03 14:09:06
    (1)-(3): 7p=-49 p=-7
  • eric
    2020-12-03 14:13:51
    correction: (1)-(3): 7p=49 p=7
  • eric
    2020-12-03 14:21:47
    Then find q by yourself
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