MCQ Practice Mathematics বাংলাদেশ পরিসংখ্যান ব্যুরোর ডাটা এন্ট্রি/কন্ট্রোল অপারেটর নিয়োগ পরীক্ষা-২০২০ 📖 (a + b) = 7 এবং ab =10 হলে (a - b) = ? ক 2খ 3গ 4ঘ 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 This question appeared in bbs Data Entry Operator Recruitment Question Bank 2020 Question 30 bbs Data Entry Operator Recruitment Question Bank 2020 Question 30 Previousa + b = 5 এবং a - b = 3 হলে, ab এর মান কত ? Next a + b = 7 এবং ab = 10 হলে, a2 + b2 + 3ab = কত?
