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Ex 9.5, 4 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 10

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Ex 9.5, 4 Simplify. (vi) (π‘Žπ‘+𝑏𝑐)^2βˆ’2π‘Žπ‘^2 𝑐 (π‘Žπ‘+𝑏𝑐)^2βˆ’2π‘Žπ‘^2 𝑐 (π‘₯+𝑦)^2=π‘₯^2+𝑦^2+2π‘₯𝑦 Putting π‘₯ = π‘Žπ‘ & 𝑦 = 𝑏𝑐 = (π‘Žπ‘)^2+(𝑏𝑐)^2+2(π‘Žπ‘)(𝑏𝑐)βˆ’2π‘Žπ‘^2 𝑐 = (π‘Ž^2×𝑏^2 )+(𝑏^2×𝑐^2 )+(2Γ—π‘ŽΓ—(𝑏×𝑏)×𝑐)βˆ’2π‘Žπ‘^2 𝑐 = π‘Ž^2 𝑏^2+𝑏^2 𝑐^2+2π‘Žπ‘^2 π‘βˆ’2π‘Žπ‘^2 𝑐 = 𝒂^𝟐 𝒃^𝟐+𝒃^𝟐 𝒄^𝟐

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.