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Math Help - "Simple Surd"

  1. #1
    NeF
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    Arrow "Simple Surd"

    REally its so simple its difficult

    --> Without a calculator simplify   \sqrt18 .  \sqrt24

    I get as far as   \sqrt3\sqrt6  .   \sqrt4\sqrt6
      \sqrt3\sqrt6  .   2\sqrt6

    the book says the ans is 24\sqrt3
    But i have no clue how to achive that answer
    Last edited by NeF; July 9th 2006 at 01:38 PM.
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by NeF
    REally its so simple its difficult

    --> Without a calculator simplify   \sqrt18 .  \sqrt24

    I get as far as   \sqrt3\sqrt6  .   \sqrt4\sqrt6
      \sqrt3\sqrt6  .   2\sqrt6

    the book says the ans is 24\sqrt3
    But i have no clue how to achive that answer
    Since   \sqrt{18} .  \sqrt{24} \ne 24\sqrt{3} either the book is wrong
    or you have copied the question incorrectly.


    <br />
\sqrt{18} .  \sqrt{24}=\sqrt{2.3.3}.\sqrt{2.2.2.3}=\sqrt{2.2.2.  2.3.3.3}=4.3.\sqrt{3}=12\sqrt{3}<br />

    RonL
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  3. #3
    NeF
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    Hey man thanks alot. The book is wrong x/
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