MCQ Practice Mathematics 📖 a + b = 8, a - b = 4 হলে ab = কত? A 10 B 12 C 18 D 8 Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up Previousa + b = 4 এবং a - b = 2 হলে a2 + b2 এর মান কত? Nexta + b = 9m এবং ab = 18 m2 হলে a - b এর মান কত?
