
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
Jiaqi is ready to simplify the expression: $(\square x^{2}+6x+8)-(6x+5x^{2}+2)$, but the coefficient "$\square$" is unclearly printed.<br/>$(1)$ He guessed "$\square$" as $3$, please simplify: $(3x^{2}+6x+8)-(6x+5x^{2}+2)$;<br/>$(2)$ His mother said, "You guessed wrong, I saw that the standard answer to this question is a constant." By calculation, determine what number should replace "$\square$" in the original question?

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