
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
There is a certain regularity in the operation between rational numbers and irrational numbers. For example, if $a$ and $b$ are rational numbers, and $a(\pi +3)+b=0$, then $a=0$, $b=0$. Given that $m$ and $n$ are rational numbers:<br/>$(1)$ If $(m-3)×\sqrt{6}+n-3=0$, then the square root of $mn$ is ______;<br/>$(2)$ If $(2+\sqrt{3})m-(1-\sqrt{3})n=5$, where $m$ and $n$ are square roots of $x$, then the value of $x$ is ______.

Present the answer in LaTex format: \boxed{Your answer}
user