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How to solve this differential equation?

  1. Dec 21, 2005 #1
    how can i solve this differential equation?

    [tex]
    {(\frac{d^2y}{dx^2})}^2+ay(x)+b=0
    [/tex]
     
  2. jcsd
  3. Dec 21, 2005 #2

    Tide

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    HINT: Define a new variable [itex]z(x) = y(x) + b/a[/itex]
     
  4. Dec 21, 2005 #3
    ok i figured it out
    any polinom of degree two will do it
    thanks
     
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