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Ex 9.4, 1 (iv) - Multiply (a + 3b) and (x + 5) - Chapter 9 Class 8

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Transcript

Ex 9.4, 1 Multiply the binomials. (iv) (𝑎 + 3𝑏) and (𝑥 + 5) (𝑎+3𝑏)(𝑥+5) = 𝑎(𝑥+5)+3𝑏(𝑥+5) = (𝑎×𝑥)+(𝑎×5)+(3𝑏×𝑥)+(3𝑏×5) = 𝒂𝒙+𝟓𝒂+𝟑𝒃𝒙+𝟏𝟓𝒃

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