
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
**Simplify:** $2y(4y^3-3y+5) - 4(y^3-3y^2+4y-6)$. **Express your answer in the form $Ay^4+By^3+Cy^2+Dy+E$.**

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