Exercise 4.3 – HCF and LCM of Algebraic Expressions This exercise is designed to help students understand and apply methods for finding the Highest Common Factor (HCF) and Least Common Multiple (LCM) of algebraic expressions. Question 1 focuses on finding the HCF using the factorization method, strengthening basic algebraic skills. Question 2 requires students to find the HCF using the division method, promoting systematic problem-solving. Question 3 involves finding the LCM by applying the prime factorization method, helping students recognize and use prime factors effectively. Students should follow the correct method for each question and show complete working steps. This exercise builds a strong foundation for advanced algebra and polynomial operations.