Question 3 (i) - Algebra Identities - Identity II - 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) (๐‘โˆ’7)^2 (๐‘โˆ’7)^2 (๐‘ฅโˆ’๐‘ฆ)^2=๐‘ฅ^2+๐‘ฆ^2โˆ’2๐‘ฅ๐‘ฆ Putting ๐‘ฅ = ๐‘ & ๐‘ฆ = 7 = (๐‘)^2+(7)^2โˆ’2(๐‘)(7) = ๐‘^2+49โˆ’(2ร—7)ร—๐‘ = ๐’ƒ^๐Ÿ+๐Ÿ’๐Ÿ—โˆ’๐Ÿ๐Ÿ’๐’ƒ

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