MCQ Practice Mathematics 📖 যদি (x - y)2 = 12 এবং xy = 1 হয়, তবে x2 + y2 = কত? A 11 B 12 C 13 D 14 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 Previousযদি x + 3y = 40 এবং y = 3x হয় তবে x = ? Nextযদি (x - y)2 = 14 এবং xy = 2 হয় তবে x2 + y2 = কত?