10. Substituting x = – 3 in (a) x^2 + 5x + 4 gives (– 3)^2+5(– 3)+4 = 9+2+4 = 15 10. Substituting x = – 3 in (a) x^2 + 5x + 4 gives (– 3)^2+5(– 3)+4 = 9+2+4 = 15 October 13, 2020 Category: Chapter 14 - Factorisation , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related