Results 1 to 3 of 3

Math Help - A bit of algebra

  1. #1
    Newbie
    Joined
    Dec 2006
    Posts
    7

    A bit of algebra

    I'm working on a complicated geometery problem (see the Geometry forum) but I've hit an algebra brick wall. I need to rearrange the following in terms of a;



    For clarity, a is the unknown. I know x, b and c

    Can this be done? Any help appreciated
    Last edited by xh558; December 23rd 2006 at 04:43 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Grand Panjandrum
    Joined
    Nov 2005
    From
    someplace
    Posts
    14,972
    Thanks
    4
    Quote Originally Posted by xh558 View Post
    I'm working on a complicated geometery problem (see the Geometry forum) but I've hit an algebra brick wall. I need to rearrange the following in terms of a;



    For clarity, a is the unknown. I know x, b and c

    Can this be done? Any help appreciated
    Its a quartic in a for which there is a formula (Google for it)

    But are you sure that x is a variable rather than an operator?

    RonL
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie
    Joined
    Dec 2006
    Posts
    7

    Swoooosh!

    I took a look at that quartic formula and experienced that swooooshing sound you hear when something flies right over the top of your head. I'll take another look later in the week (after the festivities) but I don't hold out much hope.

    This is supposed to be a simple exercise in discovering the height of liquid in a half-empty cone frustum. I really don't think my lecturer intended it to be so difficult - which leads me to think there is a simpler solution just waiting to reveal itself.

    http://www.mathhelpforum.com/math-he...l-frustum.html
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: February 4th 2011, 08:39 AM
  2. Replies: 2
    Last Post: December 6th 2010, 03:03 PM
  3. Algebra or Algebra 2 Equation Help Please?
    Posted in the Algebra Forum
    Replies: 4
    Last Post: May 12th 2010, 11:22 AM
  4. Replies: 0
    Last Post: April 23rd 2010, 11:37 PM
  5. algebra 2 help
    Posted in the Algebra Forum
    Replies: 3
    Last Post: January 4th 2009, 06:24 PM

Search Tags


/mathhelpforum @mathhelpforum