Results 1 to 2 of 2

Math Help - Noo! Simultanious Equations! Stuck! Relallly bad!

  1. #1
    Newbie
    Joined
    Aug 2008
    Posts
    5

    Noo! Simultanious Equations! Stuck! Relallly bad!

    hey again! ive got like 15 minutes to get this question done, and i reckon im screwed, i missed two classes on this topic last week and i reallly dont want to fail!. if you can help that'd be awesome!

    the question is

    Solve simultaneously:

    y = x(x-3)
    y =x-4
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by azki View Post
    hey again! ive got like 15 minutes to get this question done, and i reckon im screwed, i missed two classes on this topic last week and i reallly dont want to fail!. if you can help that'd be awesome!

    the question is

    Solve simultaneously:

    y = x(x-3)
    y =x-4
    Solve for x: x(x-3) = x - 4 \Rightarrow x^2 - 4x + 4 = 0.

    Then substitute the solution for x into y = x - 4 to get the value of y.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. simultanious equation
    Posted in the Algebra Forum
    Replies: 4
    Last Post: November 24th 2011, 01:41 AM
  2. Replies: 3
    Last Post: August 2nd 2011, 10:37 AM
  3. How to solve 3 simultanious equations in maple?
    Posted in the Math Software Forum
    Replies: 0
    Last Post: October 28th 2009, 10:09 AM
  4. simultanious equations again
    Posted in the Algebra Forum
    Replies: 2
    Last Post: April 13th 2009, 01:26 PM
  5. simultanious equations
    Posted in the Algebra Forum
    Replies: 1
    Last Post: January 9th 2009, 07:02 AM

Search Tags


/mathhelpforum @mathhelpforum