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Math Help - rational expressions

  1. #1
    Newbie
    Joined
    Jul 2005
    Posts
    6

    Angry rational expressions

    b^2 +b 10
    -----------
    5 b^2 + b



    3x(x^2 - 6x +9)
    ---------------
    ......
    x - 3

    need a little help working this out can some one show me please!
    Last edited by MathGuru; August 8th 2005 at 09:25 PM.
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  2. #2
    Newbie
    Joined
    Aug 2005
    From
    'straya
    Posts
    18
    Could be too late too help, but:
    Second problem

    3x(x^2 - 6x +9)
    ---------------
    ......x - 3

    =3x(x-3)(x-3)
    ---------------
    ......x - 3
    =3x(x-3)
    =3x^2-9x
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