Example 9 - Multiply (i) (a + 7) and (b - 5) (ii) (a^2 + 2b^2) and

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  1. Chapter 9 Class 8 Algebraic Expressions and Identities
  2. Serial order wise

Transcript

Example 9 Multiply (i) (๐‘Ž+7) and (๐‘โˆ’5) (๐‘Ž+7)ร—(๐‘โˆ’5) = ๐‘Ž(๐‘โˆ’5)+7(๐‘โˆ’5) = (๐‘Žร—๐‘)โˆ’(๐‘Žร—5)+(7ร—๐‘)โˆ’(7ร—5) = ๐’‚๐’ƒโˆ’๐Ÿ“๐’‚+๐Ÿ•๐’ƒโˆ’๐Ÿ‘๐Ÿ“

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.