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Chapter 8 Class 8 Algebraic Expressions and Identities

Serial order wise

Last updated at July 24, 2023 by Teachoo

Ex 8.3, 5 (a) Add: p (p – q), q (q – r) and r (r – p)p (p – q) = p × p – p × q = p2 – pq2 q (q – r) = q × q – q × r = q2 – qr r (r – p) = r × r – r × p = r2 – rp Simplifying expressions Adding expressions So, our answer is p2 + q2 + r2 – pq – qr – rp