Example 8 (ii) - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at August 14, 2026 by

Example 8 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 2

 

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Example 8 Multiply (ii) (𝑥 – 𝑦) and (3𝑥 +5𝑦) (𝑥−𝑦)×(3𝑥+5𝑦) = 𝑥(3𝑥+5𝑦)−𝑦(3𝑥+5𝑦) = (𝑥×3𝑥)+(𝑥×5𝑦)−(𝑦×3𝑥)−(𝑦×5𝑦) = 3𝑥^2+5𝑥𝑦−3𝑦𝑥−5𝑦^2 = 3𝑥^2+5𝑥𝑦−3𝑥𝑦−5𝑦^2 = 𝟑𝒙^𝟐+𝟐𝒙𝒚−𝟓𝒚^𝟐

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