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Homework Statement
Does lim x> 2 (3x^{2}+ax+a+3)/(x^{2}+x2) exist?
If so, find the limit.
Homework Equations

The Attempt at a Solution
I've tried factorizing the denominator to (x+2)(x1), but then I don't know how to proceed on the exercise. I have seen that the limit exists when the numerator equals 0, but why is this (the denominator is also 0)? Does 0/0 exist at all?
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