Selina Concise Mathematics Class 9 ICSE Solutions Factorisation Selina ICSE Solutions for Class 9 Maths Chapter 5 Factorisation Exercise 5(A) 1 . Solution 1: 2. Solution 2: 3. Solution 3: 4.Factorise by taking out the common factors: 2 (2x - 5y) (3x + 4y) - 6 (2x - 5y) (x - y) Solution 4: 5.Factorize by the grouping method: a 3 + a - 3a 2 - 3 Solution 5: 6.Factorize by the grouping method: 16 (a + b) 2 - 4a - 4b Solution 6: 7.Factorize by the grouping method: a 4 - 2a 3 - 4a + 8 Solution 7: 8.Factorize by the grouping method: ab - 2b + a 2 - 2a Solution 8: 9.Factorize by the grouping method: ab (x 2 + 1) + x (a 2 + b 2 ) Solution 9: 10.Factorize by the grouping method: a 2 + b - ab - a Solution 10: 11.Factorize by the grouping method: (ax + by) 2 + ( bx ...
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