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 dividing polynomials, factor out common terms and then cancel them out. The domain of the quotient function excludes values that make the denominator zero.

Step-by-step Solution
1. Factor the numerator:
2. Recognize that is a difference of squares:

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