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# Non-linear differential equations Watch

1. Ok so here's the question:
Q2. a) Show that the substitution transforms the differential equation

into

b) Find the general solution for

I've done the first part, it's really easy. But the second part confuses me. I don't know what to use for the integrating factor. I tried using the method of bringing over to the RHS but I couldn't figure it out either.

For reference the answer in the back of the book is:
Spoiler:
Show
[tex] u= -\ln(x+c) [/[tex]

any help would be appreciated
2. You can't use an integrating factor here. Instead, take over to the right-hand side, and divide both sides by and integrate (you're essentially separating variables).
3. (Original post by tommm)
You can't use an integrating factor here. Instead, take over to the right-hand side, and divide both sides by and integrate (you're essentially separating variables).
Thanks !

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Updated: April 16, 2013
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