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

Last updated at December 16, 2024 by

Ex 9.5, 6 - Using identities, evaluate (i) 71^2 (ii) 99^2 (iii) 102^2

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Question 6 Using identities, evaluate. (i) 怖71怗^2 怖71怗^2 =(70+1)^2 (š‘Ž+š‘)^2=š‘Ž^2+š‘^2+2š‘Žš‘ Putting š‘Ž = 70 & š‘ = 1 = (70)^2+(1)^2+2(70)(1) = 4900+1+140 = šŸ“šŸŽšŸ’šŸ

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