Factor: x² − 9 A (x−3)² B (x+3)(x−3) C (x+9)(x−1) D x(x−9) ✓ Correct Answer: Option B Difference of squares: a² − b² = (a+b)(a−b). x² − 9 = (x+3)(x−3). Practice CLEP Exam Prep Quizzes → Browse All Questions Study Flashcards