
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
A student, while performing polynomial subtraction, mistakenly thought that subtracting $2a^{2}+3a-5$ was the same as adding $2a^{2}+3a-5$. The answer obtained was $5a^{2}+a-4$ (with no other errors in calculations). What is the correct result? (Please provide a comprehensive calculation, otherwise no credit will be given)

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