
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
Calculate:<br/>$(1)$ Calculate: $28x^{4}y^{2}\div 7x^{3}y$;<br/>$(2)$ Simplify first, then find the value of $\left(2x+3y\right)^{2}-\left(2x+y\right)\left(2x-y\right)$, where $x=\frac{1}{3}$, $y=\frac{1}{2}$.

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