Ex 9.5, 1 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 3

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

Transcript

Ex 9.5, 1 Use a suitable identity to get each of the following products. (iii) (2๐‘Ž โ€“ 7) (2๐‘Ž โ€“ 7) (2๐‘Žโˆ’7) (2๐‘Žโˆ’7) = (2๐‘Žโˆ’7)^2 = (2๐‘Ž)^2+(7)^2โˆ’2(2๐‘Ž) (7) = (2^2ร—๐‘Ž^2 )+49โˆ’(2ร—2ร—7)ร—๐‘Ž = ๐Ÿ’๐’‚^๐Ÿ+๐Ÿ’๐Ÿ—โˆ’๐Ÿ๐Ÿ–๐’‚

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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.