88. Factorise the following expressions. (xi) a^3 + a^2 + a + 1 88. Factorise the following expressions. (xi) a^3 + a^2 + a + 1 July 27, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related 91. Factorise the following. (xi) y^2 + 7y + 1289. Factorise the following, using the identity a^2 + 2ab + b^2 = (a + b)^2 (xi) 9x^2 + 24x + 1692. Factorise the following using the identity a^2 – b^2 = (a + b) (a – b). (xi) y^3 – y/9