The polynomial $p(x) = x^2+ax+b$ has distinct roots $2a$ and $b$. Find $a+b$.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
The polynomial $p(x) = x^2+ax+b$ has distinct roots $2a$ and $b$. Find $a+b$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
-1
The polynomial $p(x) = x^2+ax+b$ has distinct roots $2a$ and $b$. Find $a+b$.
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