(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

http://www4b.wolframalpha.com/Calculate/MSP/MSP10351a01a355263db6f2000030459ebe888feb73?MSPStoreType=image/gif&s=10&w=131&h=41 [Broken]

I know the answer, but I don't know how to get it.

2. Relevant equations

If picture doesn't work: limit x->1 (x-1)/((square root(x+3) - 2)

3. The attempt at a solution

I know that when you plug in 1, the answer becomes 0/0, which means I need to factor. I don't know how to factor this equation, though.

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# Limit of a function

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