MCQ Practice Mathematics 📖 If a + b = 8 and ab = 15, what is the value of a2 + b2 ? A 30 B 34 C 79 D 94 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 Previousদুটি সংখ্যার সমষ্টি ১৩ এবং গুণফল ৬ হলে সংখ্যা দুটির বর্গের অন্তরফল কত? NextIf a3 - b3 = 513 and a - b = 3, what is the value of ab?