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## Homework Statement

__Solve__: ##x\frac{dy}{dx}-4y=x^{6}e^{x}##

## Homework Equations

##x^{-4}\frac{dy}{dx}-4x^{-5}y=xe^{x}## is equal to ##\frac{d}{dx}[x^{-4}y]=xe^x##

## The Attempt at a Solution

The second equation above simplifies to the third (according to my textbook) but I can't figure out how. Any help would be greatly appreciated!

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