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.