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

Transcript

Ex 9.4, 1 Multiply the binomials. (i) (2๐‘ฅ + 5) and (4๐‘ฅ โ€“ 3) (2๐‘ฅ+5) (4๐‘ฅโˆ’3) = 2๐‘ฅ(4๐‘ฅโˆ’3)+5(4๐‘ฅโˆ’3) = (2๐‘ฅร—4๐‘ฅ)โˆ’(2๐‘ฅร—3)+(5ร—4๐‘ฅ)โˆ’(5ร—3) = 8๐‘ฅ^2โˆ’6๐‘ฅ+20๐‘ฅโˆ’15 = ๐Ÿ–๐’™^๐Ÿ+๐Ÿ๐Ÿ’๐’™โˆ’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 9 years. He provides courses for Maths and Science at Teachoo.