Algebra-1

Question Analysis
This question tests the student's ability to simplify a rational expression by factoring and canceling common terms, which is a fundamental skill in dividing functions.

Key Concept Explanation
When simplifying a rational expression, factor both the numerator and the denominator, and then cancel out any common factors. The domain of the simplified function must exclude values that make the original denominator zero.

Step-by-step Solution
1. Start with the expression:
2. Factor out the greatest common factor (GCF) in the numerator: