Hey everyone,

I have this problem $\displaystyle y(x-y-2)dx + x(y-x+4)dy = 0$

I get an integration factor of $\displaystyle y^3$ but when I multiply both equations by this they are not exact, what am I doing wrong?

Thanks

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- Oct 9th 2011, 01:29 PMevant8950Non-exact differential equation help
Hey everyone,

I have this problem $\displaystyle y(x-y-2)dx + x(y-x+4)dy = 0$

I get an integration factor of $\displaystyle y^3$ but when I multiply both equations by this they are not exact, what am I doing wrong?

Thanks - Oct 9th 2011, 02:35 PMJesterRe: Non-exact differential equation help
Check your sign. I believe it should be $\displaystyle \frac{1}{y^3}$.

- Oct 9th 2011, 02:39 PMevant8950Re: Non-exact differential equation help
I got it. It was my sign. I appreciate your help.