I have opened the image and am ready to assist. Let me extract and analyze the mathematical content visible in the image for further clarification.The image shows a problem involving logarithms and exponents:

The given equation is:

$\log_b(625) = \log_b(5^4) = 4\log_b(5)$

This simplifies to:

$\frac{\log_b(5)}{5} = \log_b \left( \frac{x^2}{100} \right) = \frac{2\log_b(x) - 2\log_b(10)}{5}$

After simplifying, the answer appears to be derived and verified as correct. Would you like a detailed breakdown of the steps to arrive at this solution?

Here are 5 relative questions based on this topic:

1. How do you simplify logarithmic equations?
2. What are the properties of logarithms, such as the power rule and quotient rule?
3. How can you solve for unknown variables using logarithmic functions?
4. How does the change of base formula work with logarithms?
5. What are the common logarithmic and exponential identities used in calculus?

Tip: When dealing with logarithmic equations, always check for properties like the product,