Let $m$ and $n$ satisfy $mn=7$ and $m+n=8$. What is $|m-n|$?
Question:
Let $m$ and $n$ satisfy $mn=7$ and $m+n=8$. What is $|m-n|$?
Answer:
Let's think step by step.

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Let $m$ and $n$ satisfy $mn=7$ and $m+n=8$. What is $|m-n|$?
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