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Solve 4th order trial n error method

  1. May 31, 2008 #1
    Hi, anyone can advise how to solve a 4th order equation with trial and error method?

    This is the equation:

    3s^4 + 10s^3 + 21s^2 + 24s - 16 = 0
  2. jcsd
  3. Jun 1, 2008 #2
    I'm kinda new to DE's, but where's the ds/dy?
  4. Jun 1, 2008 #3
    Forget trial and error, use the quartic formula.
  5. Jun 1, 2008 #4
    Yeah, this isn't a differential equation, just an algebraic quartic equation.

    I haven't heard of Trial and Error in a while but I think it is something like guessing values for which this equation is true such as c and then dividing the original equation by s-c and repeating this until you have all four roots.
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