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  1. G

    Differential equation problem

    Hmm... I must have made some mistake. Well, thanks a lot for the help.
  2. G

    Differential equation problem

    That doesn't seem to work, I get that A should equal both 0 and 1/2. I've also tried Ae^-x, which didn't work either.
  3. G

    Differential equation problem

    The last example on my homework assignment this week is this: Solve the following differential equation. y'' + 2y' + y = e^{-x} I started by solving it like it was y'' + 2y' +y = 0 (Instert y = e^ax and so on) and got the following equation and solution: e^{ax}(a^2 + 2a + 1) = 0 => a...
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