Results 1 to 3 of 3

Math Help - "Writing a Radical Quotient in Lowest Terms"

  1. #1
    Newbie firefly_senshi6's Avatar
    Joined
    Jan 2007
    Posts
    6

    "Writing a Radical Quotient in Lowest Terms"

    Could someone please help me write this radical quotient in lowest terms? My textbook didn't give me an example for one like this. I'm confused.

    \frac{12-\sqrt{40}}{4}
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Quick's Avatar
    Joined
    May 2006
    From
    New England
    Posts
    1,024
    Quote Originally Posted by firefly_senshi6 View Post
    Could someone please help me write this radical quotient in lowest terms? My textbook didn't give me an example for one like this. I'm confused.

    \frac{12-\sqrt{40}}{4}
    All it wants you to do is simplify the radical, which gives you:

    \frac{12-2\sqrt{10}}{4}

    Then you can simplify the fraction by writing it like: \frac{2(6)-2\sqrt{10}}{2(2)}

    Then cancel the twos: \frac{\not{2}(6)-\!\!\not{2}\sqrt{10}}{\not{2}(2)}

    Therefore: \frac{12-\sqrt{40}}{4}=\frac{6-\sqrt{10}}{2}

    Do you need help on simplifying the radical?
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie firefly_senshi6's Avatar
    Joined
    Jan 2007
    Posts
    6
    Ahhhh, I see what I was doing wrong, now. For some reason, instead of doing this:

    \frac{12-2\sqrt{10}}{4}

    I did this:

    \frac{12(2)-\sqrt{10}}{4}


    Thank you so much for your help! Now I know where I've been messing up.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: April 24th 2011, 07:01 AM
  2. Replies: 1
    Last Post: October 25th 2010, 04:45 AM
  3. Replies: 3
    Last Post: April 30th 2009, 02:39 PM
  4. Replies: 1
    Last Post: January 23rd 2008, 04:12 PM
  5. logic: expressing "or" in terms of "implies not"
    Posted in the Discrete Math Forum
    Replies: 3
    Last Post: September 29th 2007, 06:55 AM

/mathhelpforum @mathhelpforum