73. Factorisation of – 3a^2 + 3ab + 3ac is 3a (–a – b – c). 73. Factorisation of – 3a^2 + 3ab + 3ac is 3a (–a – b – c). July 21, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related