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Math Help - simplify

  1. #1
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    simplify

    hi i need to simplify this simplify-3.jpg but i don't know how to, can someone explain how to please?!
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  2. #2
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    \sqrt{75}=\sqrt{3\cdot25}=5\sqrt{3}

    \sqrt{27}=\sqrt{3\cdot 9}=3\sqrt{3}

    Then:

    \sqrt{75}+\sqrt{27}=5\sqrt{3}+3\sqrt{3}=8\sqrt{3}
    Last edited by felper; February 5th 2010 at 12:30 PM. Reason: Little mistake corrected
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  3. #3
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    e^(i*pi)'s Avatar
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    Quote Originally Posted by felper View Post
    \sqrt{75}=\sqrt{3\cdot25}=5\sqrt{3}

    \sqrt{27}=\sqrt{3\cdot 9}=3\sqrt{3}

    Then:

    \sqrt{75}+\sqrt{25}=5\sqrt{3}+3\sqrt{3}=8\sqrt{3}
    Interesting typo in your last line
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  4. #4
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    Quote Originally Posted by e^(i*pi) View Post
    Interesting typo in your last line

    ?
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  5. #5
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    Quote Originally Posted by e^(i*pi) View Post
    Interesting typo in your last line
    Oh, sorry, now it is correct (i think)
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