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Math Help - Help with question involving surds

  1. #1
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    Help with question involving surds

    Hi hi!

    My first time & first post here.

    Trying my best to post this in the correct forum...

    Could do with lots of help with this question:




    With a calculator's help, I fould the answer to be 1 (x tends to 3; y tends to 2).

    Is there a "working" that can be applied apart from simply using the calculator repeatedly?
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    Last edited by genie; July 14th 2010 at 09:23 AM. Reason: Image not showing...
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  2. #2
    MHF Contributor
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    Hi

    You can see that \displaystyle x^2-6=x which means that x is solution of \displaystyle x^2-x-6=0 which has 2 solutions x=3 or x=-2. But x cannot be negative therefore x=3

    The same for y leads to y=2
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  3. #3
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    Got it! That's awesome!

    Thanks so very much!! :
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