MCQ Practice Mathematics 📖 (2a + 5b + 3c)2 + (5b + 3c - a)2 - 2 (2a + 5b + 3c) (5b + 3c - a) এর সরলকৃত রূপ কোনটি? A 4a2 B 4ab C 6b2 D 9a2 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 Previous25x + 27y = 131 এবং 27x + 25y = 129 সমীকরণে (x, y) এর মান কত? Next(2x + 3y)2 + 2 (2x + 3y) (2x - 3y) + (2x - 3y)2 এর সরলকৃত রূপ কোনটি?