Results 1 to 14 of 14

Math Help - Rational equation

  1. #1
    Junior Member
    Joined
    Mar 2007
    Posts
    45

    Rational equation

    Hi again. I have this problem

    3x/(6x-4) + 4/x =1/(3x-2)

    Thanks for any help!!!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Global Moderator

    Joined
    Nov 2005
    From
    New York City
    Posts
    10,616
    Thanks
    10
    Multiply everything by x(6x-4)
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Super Member
    Joined
    Oct 2006
    Posts
    679
    Awards
    1

    Re:

    The answer is x=-8 hold on as I am getting ready to post the solution...
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Junior Member
    Joined
    Mar 2007
    Posts
    45
    Quote Originally Posted by ThePerfectHacker View Post
    Multiply everything by x(6x-4)
    I got that from the solutions manual, but how do I multiply everything by x(6x-4). What cancels? etc.
    Follow Math Help Forum on Facebook and Google+

  5. #5
    Super Member
    Joined
    Oct 2006
    Posts
    679
    Awards
    1

    Re:

    Re:
    Attached Thumbnails Attached Thumbnails Rational equation-mathfailure.gif  
    Follow Math Help Forum on Facebook and Google+

  6. #6
    Junior Member
    Joined
    Mar 2007
    Posts
    45
    Quote Originally Posted by qbkr21 View Post
    Re:
    That was amazing.. I get it now! for now! ha thanks again!
    Follow Math Help Forum on Facebook and Google+

  7. #7
    Super Member
    Joined
    Oct 2006
    Posts
    679
    Awards
    1

    Re:

    Sorry it took so long. I am trying to do two things at one: Solve Math and read about the colonization of Indonesia...
    Follow Math Help Forum on Facebook and Google+

  8. #8
    is up to his old tricks again! Jhevon's Avatar
    Joined
    Feb 2007
    From
    New York, USA
    Posts
    11,663
    Thanks
    3
    Quote Originally Posted by qbkr21 View Post
    Sorry it took so long. I am trying to do two things at one: Solve Math and read about the colonization of Indonesia...
    I'm doing three things. Helping out here, studying for chem, and doing math homework...i'm mostly doing math though
    Follow Math Help Forum on Facebook and Google+

  9. #9
    Super Member
    Joined
    Oct 2006
    Posts
    679
    Awards
    1

    Re:

    Follow Math Help Forum on Facebook and Google+

  10. #10
    Junior Member
    Joined
    Mar 2007
    Posts
    45
    I had spent an hour trying to figure that one out. I was wondering. I mirrored your work to another problem that I am doing and it's not working out. So I was wondering if you or someone could help me out one more time with these rational equations.

    The equation is

    4x/(x-1) +4(x+1)= x+7/(x^2-1)

    I ended up using the quadratic forumula and keep comming up with -7 + - sqrt(176)/8 , which isn't one of the solutions acccording to the book.


    Thanks for any further help!!!
    Follow Math Help Forum on Facebook and Google+

  11. #11
    Super Member
    Joined
    Oct 2006
    Posts
    679
    Awards
    1

    Re:

    RE:

    Is this supposed to be 4(x+1) or 4/(x+1)?
    Follow Math Help Forum on Facebook and Google+

  12. #12
    Junior Member
    Joined
    Mar 2007
    Posts
    45
    Quote Originally Posted by qbkr21 View Post
    RE:

    Is this supposed to be 4(x+1) or 4/(x+1)?

    sorry about that.. I meant 4/(x+1)
    Follow Math Help Forum on Facebook and Google+

  13. #13
    Super Member
    Joined
    Oct 2006
    Posts
    679
    Awards
    1

    Re:

    Re:
    Attached Thumbnails Attached Thumbnails Rational equation-mathfailure-2.gif  
    Follow Math Help Forum on Facebook and Google+

  14. #14
    Junior Member
    Joined
    Mar 2007
    Posts
    45
    Quote Originally Posted by qbkr21 View Post
    Re:


    This was sooo helpful! Thank you. I was wondering though, why you factored out a (X-1) on both sides and not a (x+2). Thanks again!
    Last edited by Mathfailure; April 16th 2007 at 07:04 AM.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. rational equation
    Posted in the Algebra Forum
    Replies: 1
    Last Post: October 3rd 2011, 07:02 PM
  2. please help me with this Rational Equation
    Posted in the Algebra Forum
    Replies: 3
    Last Post: November 23rd 2010, 07:00 PM
  3. Rational equation
    Posted in the Algebra Forum
    Replies: 2
    Last Post: October 4th 2010, 03:32 AM
  4. Replies: 2
    Last Post: December 8th 2009, 07:48 AM
  5. Replies: 2
    Last Post: April 28th 2009, 07:42 AM

Search Tags


/mathhelpforum @mathhelpforum