Example 9 (ii) - Chapter 8 Class 8 Algebraic Expressions and Identities

Last updated at August 14, 2026 by

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

Remove Ads

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

Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh is an IIT Kanpur graduate and has been teaching for 16+ years. At Teachoo, he breaks down Maths, Science and Computer Science into simple steps so students understand concepts deeply and score with confidence.

Many students prefer Teachoo Black for a smooth, ad-free learning experience.