78. The value of p for 51^2 – 49^2 = 100p is 2. 78. The value of p for 51^2 – 49^2 = 100p is 2. July 21, 2021 Category: Chapter 14 - Factorisation , Chapter 9 - Algebraic Expressions and Identities , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related