92. Factorise the following using the identity a^2 – b^2 = (a + b) (a – b). (xviii) a^4 – (a – b)^4 92. Factorise the following using the identity a^2 – b^2 = (a + b) (a – b). (xviii) a^4 – (a – b)^4 July 27, 2021 Category: Chapter 14 - Factorisation , [...]