
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
Leslie solved the quadratic equation $13x^2 + 39x - 91 = 0$ by completing the square and considering the absolute value of the result. She ended up with the revised equation $$(x + k)^2 - |\ell| = 0,$$ where $k$ and $\ell$ are constants.

What is $|k + \ell|$?

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