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Math Help - Furd

  1. #1
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    Question Furd

    My daughter (year 10) has come home wanting help with SURD's - she needs to simply 3 x sqrt 6 x sqrt 2

    I have never heard of a FURD and can't find a descritption - can anyone help please?
    Last edited by squeak; February 12th 2009 at 12:54 AM.
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  2. #2
    Like a stone-audioslave ADARSH's Avatar
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    First of all it seems you want to say Surd

    Read this A-level Mathematics/OCR/C1/Indices and Surds - Wikibooks, collection of open-content textbooks


     <br />
3\times \sqrt{6} \times \sqrt{2}<br />

     <br />
=3 \times \sqrt{2\times 3} \times \sqrt{2}<br />




     <br />
=6\times \sqrt{3}<br />
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  3. #3
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    Quote Originally Posted by ADARSH View Post

     <br />
=3 \times \sqrt{2\times 3} \times \sqrt{2}<br />
    If you wondering how to get from there to

     <br />
=6 \times \sqrt{3}<br />

     <br />
\sqrt{2}\times \sqrt{2} = 2<br />

    Therefore we get:

     <br />
=3 \times 2\sqrt{3}<br />

     <br />
=6\sqrt{3}<br />
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  4. #4
    MHF Contributor matheagle's Avatar
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    at least he didn't say turd, oops, I did , sry
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