
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
In triangle \(ABC\), point \(X\) lies on side \(AB\) such that it bisects angle \(ACB\). Given that \(AB = 40\) units, \(BC = 35\) units, and \(AC = 21\) units, find the length of \(AX\).

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