What is the largest possible value of $x$ such that $x^2-5x-36=0$?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the largest possible value of $x$ such that $x^2-5x-36=0$?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
9
What is the largest possible value of $x$ such that $x^2-5x-36=0$?
train