how do I make:(adsbygoogle = window.adsbygoogle || []).push({});

20(x + 20) / ((x+10)^2 + 400)

into a fraction like (x-a)(x-b)....etc / (x-c)(x-d)....etc

where a b c d are constants. The 400 is really stumping me.

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# Homework Help: Factoring a fraction

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