Example 7 - Chapter 8 Class 8 Algebraic Expressions and Identities
Last updated at Dec. 16, 2024 by Teachoo
Last updated at Dec. 16, 2024 by Teachoo
Example 7 Subtract 3pq (p – q) from 2pq (p + q). Given expressions 3pq (p – q) & 2pq (p + q) Simplifying expression: 3pq (p – q) = 3pq × p – 3pq × q = 3p2q – 3pq2 2pq (p + q) = 2pq × p + 2pq × q = 2p2q + 2pq2 So, our expressions are 3p2q – 3pq2 & 2p2q + 2pq2 We have to subtract 1st expression from the 2nd expression. So, we write 2nd expression first.
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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo