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Ex 9.5, 2 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 5

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Ex 9.5, 2 Use the identity (π‘₯+π‘Ž)(π‘₯+𝑏)=π‘₯^2+(π‘Ž+𝑏)π‘₯+π‘Žπ‘ to find the following products. (v) (2π‘₯+5𝑦)(2π‘₯+3𝑦) (2π‘₯+5𝑦)(2π‘₯+3𝑦) (𝑑+π‘Ž)(𝑑+𝑏)=𝑑^2+(π‘Ž+𝑏)𝑑+π‘Žπ‘ Putting 𝑑 = 2π‘₯ , π‘Ž = 5𝑦 & 𝑏 = 3𝑦 (𝑑+π‘Ž)(𝑑+𝑏)=𝑑^2+(π‘Ž+𝑏)𝑑+π‘Žπ‘ Putting 𝑑 = 2π‘₯ , π‘Ž = 5𝑦 & 𝑏 = 3𝑦 (As 𝑦π‘₯=π‘₯𝑦)

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