Algebra Identities and Formulas

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Chapter 8 Class 8 Algebraic Expressions and Identities
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Ex 9.5, 2 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 5

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Question 2 Use the identity (𝑥+𝑎)(𝑥+𝑏)=𝑥^2+(𝑎+𝑏)𝑥+𝑎𝑏 to find the following products. (v) (2𝑥+5𝑦)(2𝑥+3𝑦) (2𝑥+5𝑦)(2𝑥+3𝑦) (𝑡+𝑎)(𝑡+𝑏)=𝑡^2+(𝑎+𝑏)𝑡+𝑎𝑏 Putting 𝑡 = 2𝑥 , 𝑎 = 5𝑦 & 𝑏 = 3𝑦 (𝑡+𝑎)(𝑡+𝑏)=𝑡^2+(𝑎+𝑏)𝑡+𝑎𝑏 Putting 𝑡 = 2𝑥 , 𝑎 = 5𝑦 & 𝑏 = 3𝑦 (As 𝑦𝑥=𝑥𝑦)

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Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.