I am going to be gone all day tomorrow at a conference track meet and am unable to ask my teacher how to do integrating factors and differential operators. I leave tomorrow at 9:15 am and was hoping to have some examples to take with me to study.(adsbygoogle = window.adsbygoogle || []).push({});

If someone could help me walk through a these it would be great

integrating factor

[tex] (x^4+2y)dx-xdy=0 [/tex] answer: [tex]2y=x^4+cx^2[/tex]

I got it to

[tex] \frac{dy}{dx}-\frac{2y}{x}=x^3 [/tex]

[tex]e^\int{\frac{-2}{x}}=x^{-2} [/tex] = IF ... but what do you do then...

[tex] x^{-2}\frac{dy}{dx}-x^{-2}\frac{2y}{x}=x [/tex]

[tex] x^{-2}\frac{dy}{dx}-\frac{2y}{x^3}=x [/tex]

so then you get yx^-2 but i don't know what to do from here

more to come

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# Homework Help: Calc Final Help

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