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, specifically that . By factoring the radicand into its prime factors, we can extract any perfect squares.

Step-by-step Solution
1. Factor 180 into prime factors:
2. Extract the perfect squares:

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