Example 9 (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
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Transcript
Example 9 Multiply (ii) (𝑎^2+2𝑏^2 ) and (5𝑎−3𝑏) (𝑎^2+2𝑏^2 )×(5𝑎−3𝑏) = 𝑎^2 (5𝑎−3𝑏)+2𝑏^2 (5𝑎−3𝑏) = (𝑎^2×5𝑎)−(𝑎^2×3𝑏)+(2𝑏^2×5𝑎)−(2𝑏^2×3𝑏) = 𝟓𝒂^𝟑−𝟑𝒂^𝟐 𝒃+𝟏𝟎𝒃^𝟐 𝒂−𝟔𝒃^𝟑
