
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
$(1)$ Simplify: $2(2a^{2}+9b)+(-3a^{2}-4b)$;  
$(2)$ Simplify first, then find the value: $3x^{2}y-[2xy^{2}-2(xy-1.5x^{2}y)+xy]+3xy^{2}$, where $x=-3$, $y=-2$.

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