
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
Let $f(x)$ be an odd function defined on $(-\infty, 0) \cup (0, +\infty)$ and is increasing on $(0, +\infty)$. Given that $f(3) = 0$, determine the solution set for the inequality $(x+3)[f(x) - f(-x)] < 0$.

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