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

Transcript

Ex 9.4, 3 Simplify. (vi) (๐‘ฅ+๐‘ฆ)(๐‘ฅ^2โˆ’๐‘ฅ๐‘ฆ+๐‘ฆ^2 ) (๐‘ฅ+๐‘ฆ)(๐‘ฅ^2โˆ’๐‘ฅ๐‘ฆ+๐‘ฆ^2 ) = ๐‘ฅ(๐‘ฅ^2โˆ’๐‘ฅ๐‘ฆ+๐‘ฆ^2 )+๐‘ฆ(๐‘ฅ^2โˆ’๐‘ฅ๐‘ฆ+๐‘ฆ^2 ) = (๐‘ฅร—๐‘ฅ^2 )โˆ’(๐‘ฅร—๐‘ฅ๐‘ฆ)+(๐‘ฅร—๐‘ฆ^2 )+(๐‘ฆร—๐‘ฅ^2 )โˆ’(๐‘ฆร—๐‘ฅ๐‘ฆ)+(๐‘ฆร—๐‘ฆ^2 ) = ๐‘ฅ^3โˆ’๐‘ฅ^2 ๐‘ฆ+๐‘ฅ๐‘ฆ^2+๐‘ฆ๐‘ฅ^2โˆ’๐‘ฅ๐‘ฆ^2+๐‘ฆ^3 = ๐‘ฅ^3โˆ’๐‘ฅ^2 ๐‘ฆ+๐‘ฅ^2 ๐‘ฆ+๐‘ฅ๐‘ฆ^2โˆ’๐‘ฅ๐‘ฆ^2+๐‘ฆ^3 = ๐‘ฅ^3โˆ’๐‘ฅ^2 ๐‘ฆ+๐‘ฅ^2 ๐‘ฆ+๐‘ฆ^3 = ๐’™^๐Ÿ‘+๐’š^๐Ÿ‘ (๐‘ฆ๐‘ฅ^2=๐‘ฅ^2 ๐‘ฆ)

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.