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Math Help - Simplifying expressions

  1. #1
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    Simplifying expressions

    Q3:Simplify the following radical expression:



    Q4: Simplify (by rationalizing the denominator) :



    Q6: Simplify the following expression and evaluate it at x = -1, y = -2

    Last edited by mr fantastic; November 7th 2009 at 02:42 PM. Reason: Questions moved to new thread
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  2. #2
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    Quote Originally Posted by MrScorpion View Post
    Q3:Simplify the following radical expression:



    Q4: Simplify (by rationalizing the denominator) :



    Q6: Simplify the following expression and evaluate it at x = -1, y = -2

    Please show some work by yourself!

    Tonio


    Moderator edit: And say where you get stuck.
    Last edited by mr fantastic; November 7th 2009 at 02:42 PM.
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