I just came across this one, was going really well until i came across this one.(adsbygoogle = window.adsbygoogle || []).push({});

(d^2y/dx^2) + (dy/dx) = e^(-x)

m^2 + m = 0

m = -1 and m = 0

Now i get the particular integral

Try y = ke^(-x)

(dy/dx) = -ke^(-k)

(d^2y/dx^2) = ke^(-x)

ke^(-x) - ke^(-x) = e^(-x)

I get stuck here as k-k= 0, not one.

Any help would be greatly appreciated.

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# Homework Help: Second order differential equation

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