MCQ Practice Mathematics 📖 যদি (x - 1) (x + 2) = 0 হয় তবে x = ? ক -1 অথবা 2খ 1 অথবা -2গ 1 এবং -2ঘ 1 এবং 2 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 a + b + c = 5 এবং a2 + b2 + c2 = 9 হয়, তবে ab + bc + ca = কত?
