It seems like your expression is incomplete. To calculate the limit, we need the entire expression, including the variable approaching some value (e.g., $\lim_{x \to a}$).

Could you please provide the full expression?

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1. Are you dealing with limits approaching infinity or a specific value?
2. Is the expression inside the square root supposed to be $x^2 + 8x - 5$?
3. Are you working on a specific type of limit, like one that involves rationalizing the numerator?
4. Do you need help understanding how to handle square roots within limits?
5. Are there any additional constraints on the limit?

Tip: When working with square roots in limits, consider rationalizing to simplify the expression.