Algebra-1

Question Analysis
This question tests the student's ability to factor a polynomial using the difference of squares, which is a key concept in Algebra-1. The problem requires the student to identify the terms that are squares and apply the formula .

Key Concept Explanation
The difference of squares is a special case where a polynomial can be factored into two binomials. The formula is . To factor such expressions, students need to recognize the terms that are perfect squares and then apply the formula.

Step-by-step Solution
1. Identify the terms that are squares: Here, and

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