Algebra-1

Question Analysis
This question tests the student's ability to simplify a radical expression by factoring it into prime factors and extracting the perfect square.

Key Concept Explanation
The key concept here is the property of radicals that allows us to factor the radicand into its prime factors and then extract any perfect squares.

Step-by-step Solution
1. Factor 125 into prime factors:
2. Extract the perfect square:

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