Results 1 to 3 of 3

Math Help - help factoring a limit

  1. #1
    Newbie
    Joined
    Jun 2009
    Posts
    3

    help factoring a limit

    I need to find the lim x>a (as "x" approaches "a") of

    ax^2 - 2x^2 + a - a^2x + 2a^2 - x
    (x - 2)(a - 2)(x - a)

    I factored out (x - a) and got

    ax - 2x - 2a -1
    (x - 2)(a - 2)

    I think I am on the right track but don't know where to go from here.
    Thanks for any help.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor Amer's Avatar
    Joined
    May 2009
    From
    Jordan
    Posts
    1,093
    just substitute a instead of x

    \frac{ax-2x-2a-1}{(x-2)(a-2)}=\frac{a^2-2a-2a-1}{(a-2)^2}

    that's after substitute
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Jun 2009
    Posts
    3
    OK thanks for the help. I thought it might factor out further.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 4
    Last Post: July 31st 2011, 12:13 AM
  2. Replies: 16
    Last Post: November 15th 2009, 04:18 PM
  3. Limit, Limit Superior, and Limit Inferior of a function
    Posted in the Differential Geometry Forum
    Replies: 2
    Last Post: September 3rd 2009, 05:05 PM
  4. Replies: 2
    Last Post: August 22nd 2009, 10:57 AM
  5. Replies: 3
    Last Post: November 5th 2006, 11:02 PM

Search Tags


/mathhelpforum @mathhelpforum