Question 4 (i) - Algebra Identities - Identity III - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at August 13, 2026 by

Ex 9.5, 4 - Simplify (i) (a^2 - b^2)^2 (ii) (2x + 5)^2 - (2x - 5)^2

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Question 4 Simplify. (i) (๐‘Ž^2โˆ’๐‘^2 )^2 (๐‘Ž^2โˆ’๐‘^2 )^2 (๐‘ฅโˆ’๐‘ฆ)^2=๐‘ฅ^2+๐‘ฆ^2โˆ’2๐‘ฅ๐‘ฆ Putting ๐‘ฅ = ๐‘Ž^2 & ๐‘ฆ = ๐‘^2 = (๐‘Ž^2 )^2+(๐‘^2 )^2โˆ’2(๐‘Ž^2 )(๐‘^2 ) = ๐‘Ž^(2 ร— 2)+๐‘^(2 ร— 2)โˆ’2๐‘Ž^2 ๐‘^2 = ๐’‚^๐Ÿ’+๐’ƒ^๐Ÿ’โˆ’๐Ÿ๐’‚^๐Ÿ ๐’ƒ^๐Ÿ

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