Question 3 (i) - Algebra Identities and Formulas - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at August 13, 2026 by

Ex 9.5, 3 - Find the squares by using identities (i) (b - 7)^2

 

 

 

 

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Question 3 Find the following squares by using the identities. (i) (𝑏−7)^2 (𝑏−7)^2 (𝑥−𝑦)^2=𝑥^2+𝑦^2−2𝑥𝑦 Putting 𝑥 = 𝑏 & 𝑦 = 7 = (𝑏)^2+(7)^2−2(𝑏)(7) = 𝑏^2+49−(2×7)×𝑏 = 𝒃^𝟐+𝟒𝟗−𝟏𝟒𝒃

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