
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
Suppose $d \neq 0$. Express the polynomial $\left(10d + 15 + 12d^2 + 2d^3\right) + \left(4d - 3 + 2d^2\right)$ in the form $ad^3 + bd^2 + cd + e$, where $a$, $b$, $c$, and $e$ are integers. Find $a + b + c + e$.

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