Results 1 to 3 of 3

Thread: linear equation.

  1. #1
    Member
    Joined
    Dec 2010
    Posts
    106
    Thanks
    2

    linear equation.

    If $\displaystyle a+4b+9c+16d=1$

    $\displaystyle 4a+9b+16c+25d=12$

    $\displaystyle 9a+16b+25c+36d=123$

    Then find $\displaystyle 16a+25b+36c+49d = $
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Dec 2009
    Posts
    3,120
    Thanks
    4
    Quote Originally Posted by jacks View Post
    If $\displaystyle a+4b+9c+16d=1$

    $\displaystyle 4a+9b+16c+25d=12$

    $\displaystyle 9a+16b+25c+36d=123$

    Then find $\displaystyle 16a+25b+36c+49d = $
    $\displaystyle 3\left(9a+16b+25c+36d\right)-3\left(4a+9b+16c+25d\right)+\left(a+4b+9c+16d\righ t)=\;\;?$
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor

    Joined
    Apr 2005
    Posts
    19,793
    Thanks
    3035
    Of course, you understand that when we say "Thank You", we really mean "Blast, Archie Mead got there before me!"
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Linear Equation
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: Feb 12th 2011, 10:47 AM
  2. need linear equation help
    Posted in the Algebra Forum
    Replies: 6
    Last Post: Jan 9th 2011, 05:56 AM
  3. Replies: 1
    Last Post: Nov 17th 2008, 06:17 PM
  4. linear equation
    Posted in the Algebra Forum
    Replies: 5
    Last Post: Sep 14th 2008, 02:50 AM
  5. Help in linear equation
    Posted in the Advanced Algebra Forum
    Replies: 0
    Last Post: Apr 28th 2008, 07:54 AM

Search Tags


/mathhelpforum @mathhelpforum