Solving Differential Equations: Integrating (y+1)^2/y dy = x^2 ln x dx

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SUMMARY

The discussion focuses on solving the differential equation represented by the integral equation \(\frac{(y+1)^2}{y} dy = x^2 \ln x \ dx\). The integration yields the expression \(\frac{1}{2} y^2 + 2y + \ln y = \ln x \cdot \left(\frac{1}{3}x^3 - \frac{1}{9} x^3\right) + c\). Participants confirm that the integration appears correct and suggest verifying the solution by differentiating both sides with respect to \(x\) to ensure it returns to the original equation.

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basty
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Thread was originally posted in a technical section, so does not include the template
I have differential equations problem, the problem is:

##\frac{(y+1)^2}{y} dy = x^2 \ln x \ dx##

Integrating both sides will yield:

##\frac{1}{2} y^2 + 2y + \ln y = \ln x \ . \frac{1}{3}x^3 - \frac{1}{9} x^3 + c##

Is this the final solution?

If not, what is the final solution?
 
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basty said:
I have differential equations problem, the problem is:

##\frac{(y+1)^2}{y} dy = x^2 \ln x \ dx##

Integrating both sides will yield:

##\frac{1}{2} y^2 + 2y + \ln y = \ln x \ . \frac{1}{3}x^3 - \frac{1}{9} x^3 + c##

Is this the final solution?

If not, what is the final solution?
Assuming your work is correct (I didn't check), what you got looks fine. You can check for yourself by differentiating both sides with respect to x. If what you ended with is correct, you should be able to get back to the equation at the beginning of your post.
 

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