
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 the function $y = \frac{x^3 + 9x^2 + 28x + 30}{x + 3}$, find a simplified form of $y = Ax^2 + Bx + C$ that is defined everywhere except at $x = D$. What is the sum of $A + B + C + D$?

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