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## Homework Statement

[tex]\int[/tex] dx/(x

^{4}+ 16)

## Homework Equations

Hint: With a>0, x

^{4}+ a

^{2}= (x

^{2}+ [tex]\sqrt{}2a[/tex]x + a)(x

^{2}- [tex]\sqrt{}2a[/tex]x + a)

## The Attempt at a Solution

I've plugged this into the equation, which leaves me with:

[tex]\int[/tex] dx/[(x

^{2}+ [tex]\sqrt{}2a[/tex]x + a)(x

^{2}- [tex]\sqrt{}2a[/tex]x + a)]

But now I am sooooo confused! Where do I go from here? This hint does not seem so helpful... Please help!