Results 1 to 3 of 3

Math Help - Solving a limit by multiplying by conjugate

  1. #1
    Junior Member
    Joined
    Feb 2008
    Posts
    25

    Solving a limit by multiplying by conjugate

    Some of my algebra is really rusty, so I apologize. I cannot figure out how to get any farther in this problem. See the attachment.

    thanks
    Attached Thumbnails Attached Thumbnails Solving a limit by multiplying by conjugate-conjugate.gif  
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Forum Admin topsquark's Avatar
    Joined
    Jan 2006
    From
    Wellsville, NY
    Posts
    9,675
    Thanks
    302
    Awards
    1
    Quote Originally Posted by mojo0716 View Post
    Some of my algebra is really rusty, so I apologize. I cannot figure out how to get any farther in this problem. See the attachment.

    thanks
    (2x + 1) - 3 = 2x - 2 = 2(x - 1)

    Does something cancel?

    -Dan
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Feb 2008
    Posts
    25
    Quote Originally Posted by topsquark View Post
    (2x + 1) - 3 = 2x - 2 = 2(x - 1)

    Does something cancel?

    -Dan

    ah you can factor out a 2....

    thanks!
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Solving basic equation by cross multiplying?
    Posted in the Algebra Forum
    Replies: 6
    Last Post: August 5th 2011, 02:20 PM
  2. Solving a limit
    Posted in the Calculus Forum
    Replies: 1
    Last Post: September 24th 2009, 08:26 AM
  3. Solving this limit
    Posted in the Calculus Forum
    Replies: 2
    Last Post: May 26th 2009, 08:11 PM
  4. Multiplying by conjugate
    Posted in the Algebra Forum
    Replies: 8
    Last Post: September 23rd 2008, 10:21 AM
  5. Limit w. conjugate/ L'Hopital's Rule
    Posted in the Pre-Calculus Forum
    Replies: 2
    Last Post: September 17th 2008, 11:08 AM

Search Tags


/mathhelpforum @mathhelpforum