The mathematical expression in the image is:

$\frac{1}{\sqrt{x} - 2} - \frac{3}{x - 8}$

Would you like me to simplify this expression, find its domain, or perform another type of analysis? Let me know how I can assist you further.

Related Questions:

1. Would you like the domain of this expression?
2. Should I simplify this into a single fraction?
3. Do you want me to check any potential restrictions for $x$?
4. Would you like to see a graph of this function?
5. Should I solve for $x$ in a specific context (e.g., setting the expression equal to 0)?

Tip:

Always verify the domain of any rational or radical expression to ensure that the denominator or square roots are not undefined!