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

Transcript

Ex 9.3, 1 Carry out the multiplication of the expressions in each of the following pairs. (i) 4๐‘, ๐‘ž + ๐‘Ÿ 4๐‘ร—(๐‘ž+๐‘Ÿ) = (4๐‘ร—๐‘ž)+(4๐‘ร—๐‘Ÿ) = ๐Ÿ’๐’‘๐’’+๐’‘๐’“ Ex 9.3, 1 Carry out the multiplication of the expressions in each of the following pairs. (ii) ๐‘Ž๐‘, ๐‘Žโˆ’๐‘ ๐‘Ž๐‘ร—(๐‘Žโˆ’๐‘) = (๐‘Ž๐‘ร—๐‘Ž)โˆ’(๐‘Ž๐‘ร—๐‘) = (๐‘Žร—๐‘Ž)๐‘โˆ’๐‘Ž(๐‘ร—๐‘) = ๐’‚^๐Ÿ ๐’ƒโˆ’๐’‚๐’ƒ^๐Ÿ Ex 9.3, 1 Carry out the multiplication of the expressions in each of the following pairs. (iii) ๐‘Ž + ๐‘, 7๐‘Ž^2 ๐‘^2 (๐‘Ž+๐‘)ร—7๐‘Ž^2 ๐‘^2 = (๐‘Žร—7๐‘Ž^2 ๐‘^2 )+(๐‘ร—7๐‘Ž^2 ๐‘^2 ) = 7๐‘Ž^3 ๐‘^2+7๐‘Ž^2 ๐‘^3 Ex 9.3, 1 Carry out the multiplication of the expressions in each of the following pairs. (iv) ๐‘Ž^2โˆ’ 9, 4๐‘Ž (๐‘Ž^2โˆ’ 9)ร—4๐‘Ž = (๐‘Ž^2ร—4๐‘Ž)โˆ’(9ร—4๐‘Ž) = ๐Ÿ’๐’‚^๐Ÿ‘โˆ’๐Ÿ‘๐Ÿ”๐’‚ Ex 9.3, 1 Carry out the multiplication of the expressions in each of the following pairs. (v) ๐‘๐‘ž+๐‘ž๐‘Ÿ+๐‘Ÿ๐‘, 0 (๐‘๐‘ž+๐‘ž๐‘Ÿ+๐‘Ÿ๐‘)ร—0 = (๐‘๐‘žร—0)+(๐‘ž๐‘Ÿร—0)+(๐‘Ÿ๐‘ร—0) = 0+0+0 = 0

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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.