If a² + b² = 25 and ab = 12, what is (a + b)²? A 37 B 49 C 169 D 61 ✓ Correct Answer: Option B (a + b)² = a² + 2ab + b² = 25 + 2(12) = 25 + 24 = 49. Practice SAT Exam Prep Quizzes → Browse All Questions Study Flashcards