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Homework Help: Question in fractions

  1. Mar 15, 2010 #1
    question in fractions,,,

    how

    2x+9/(3-x)(x+2) < 0

    became



    (3-x)(x+2)(2x+9) < 0 " multiply both sides "

    zero is in the other side ,,,
     
  2. jcsd
  3. Mar 15, 2010 #2

    tiny-tim

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    Hi MrNeWBiE! :smile:

    'cos one is (3-x)2(x+2)2 times the other … which is always positive! :wink:
     
  4. Mar 15, 2010 #3
    Re: question in fractions,,,

    so i multiply both sides with ====> (3-x)^2(x+2)^2
     
  5. Mar 15, 2010 #4

    tiny-tim

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    (try using the X2 tag just above the Reply box :wink:)

    Yup! :biggrin:
     
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