Ex 8.1, 1 (iv) - Chapter 8 Class 8 Algebraic Expressions and Identities

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Ex 8.1, 3 Class 8 - Add (iv) l^2 + m^2, m2 + n2, n2 + l2, 2lm + 2mn + - Ex 8.1

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Ex 8.1, 1 Add the following. (iv) 𝑙^2 γ€–+ π‘šγ€—^2, π‘š^2 γ€–+ 𝑛〗^2, 𝑛^2 γ€–+ 𝑙〗^2, 2π‘™π‘š + 2π‘šπ‘› + 2𝑛𝑙Expressions are 𝑙^2 γ€–+ π‘šγ€—^2, π‘š^2 γ€–+ 𝑛〗^2, 𝑛^2 γ€–+ 𝑙〗^2, 2π‘™π‘š + 2π‘šπ‘› + 2𝑛𝑙 We put like terms below like terms ∴ Required sum = 2𝑙^2+2π‘š^2+2𝑛^2+2π‘™π‘š+2π‘šπ‘›+2𝑛𝑙 = 𝟐(𝒍^𝟐+π’Ž^𝟐+𝒏^𝟐+π’π’Ž+π’Žπ’+𝒏𝒍)

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