Algebra Identities and Formulas

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Chapter 8 Class 8 Algebraic Expressions and Identities
Serial order wise

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


Transcript

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 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.