Nonseparable ODE which method to use

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SUMMARY

The discussion centers on solving the nonseparable ordinary differential equation (ODE) given by \(\left(\frac{du}{dx}\right)^2 = au^2 + bu + c\). Participants confirm that this equation can be transformed into a separable form, specifically \(\frac{du}{\sqrt{au^{2}+bu+c}}=\pm dx\). This transformation allows for the application of separation of variables, enabling a more straightforward solution process. The conclusion emphasizes the importance of recognizing the potential for separation in seemingly nonseparable equations.

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Homework Statement


$$
\left(\frac{du}{dx}\right)^2 = au^2 + bu + c
$$


Homework Equations





The Attempt at a Solution



What method is used to solve and ODE of this form
 
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Isn't that equivalent to ##\frac{du}{\sqrt{au^{2}+bu+c}}=\pm dx## ? Seems to be separable after all.
 

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