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Algebra Identities and Formulas

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Chapter 8 Class 8 Algebraic Expressions and Identities
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Question 6 (vi) - Algebra Identities and Formulas - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at May 29, 2023 by

Ex 9.5, 6 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 7

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Transcript

Question 6 Using identities, evaluate. (vi) 297 × 303 297 × 303 = (300−3)×(300+3) (𝑎−𝑏)(𝑎+𝑏)=𝑎^2−𝑏^2 Putting 𝑎 = 300 & 𝑏 = 3 = (300)^2−(3)^2 = 90000−9 = 𝟖𝟗𝟗𝟗𝟏

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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.