this is the problem: xy'' -x(y')^2 = y'(adsbygoogle = window.adsbygoogle || []).push({});

my book says that i need to substitute u=y' and du/dx=y''...

so i get:

x(du/dx)-xu^2 = u

so next the book says i need to separate the x's/dx' to one side and u's/du's to the other. however, i cannot do it

am i using the correct technique?

thanks-

Justin

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# Homework Help: 2nd order nonlinear DE need help bad

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