What is the largest possible value not in the domain of $\log\frac{x-2}{x^2-5}$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the largest possible value not in the domain of $\log\frac{x-2}{x^2-5}$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\sqrt 5
What is the largest possible value not in the domain of $\log\frac{x-2}{x^2-5}$?
train