
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
Given that the sequence $\{ a\_n\}$ is a geometric sequence, and $a\_1+a\_2+a\_3=-6$, and $a\_1\cdot a\_2\cdot a\_3=64$, $(|q| > 1)$
1. Find the general term formula for $\{ a\_n\}$;
2. Let $b\_n=(2n+1)\cdot a\_n$, find the formula for the sum of the first $n$ terms of the sequence $\{ b\_n\}$.

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