Examples
Last updated at April 16, 2024 by Teachoo
Example 9 Multiply (i) (𝑎+7) and (𝑏−5) (𝑎+7)×(𝑏−5) = 𝑎(𝑏−5)+7(𝑏−5) = (𝑎×𝑏)−(𝑎×5)+(7×𝑏)−(7×5) = 𝒂𝒃−𝟓𝒂+𝟕𝒃−𝟑𝟓