Example 8 (ii) - Chapter 8 Class 8 Algebraic Expressions and Identities
Last updated at Dec. 16, 2024 by Teachoo
Examples
Example 1
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Chapter 8 Class 8 Algebraic Expressions and Identities
Serial order wise
Transcript
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
