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

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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 14 years. He provides courses for Maths, Science and Computer Science at Teachoo