(i) [3-(a+b)][3+(a+b)] (ii) [4-(x+y)][4+(x+y)] (iii) (a-b)(a+b)(a^2+b^2)(a^4+b^4)
(i) [3-(a+b)][3+(a+b)] (ii) [4-(x+y)][4+(x+y)] (iii) (a-b)(a+b)(a^2+b^2)(a^4+b^4) [S.Chand Class 9 ICSE Exercise 3.1 Chapter 3 Expansion and Factorisation Solution] (i) [3-(a+b)][3+(a+b)] …