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Ex 9.3, 5 (a) - Chapter 9 Class 8 Algebraic Expressions and Identities
Last updated at March 16, 2023 by Teachoo
Transcript
Ex 9.3, 5 (a) Add: p (p – q), q (q – r) and r (r – p) Simplifying expressions 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 So, our answer is p2 + q2 + r2 – pq – qr – rp
