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Ex 9.4, 2 (i) - Find (5 - 2x) (3 + x) - Chapter 9 Class 8


Transcript

Ex 9.4, 2 Find the product. (i) (5 – 2x) (3 + x) (5−2𝑥) (3+𝑥) = 5(3+𝑥)−2𝑥(3+𝑥) = (5×3)+(5×𝑥)−(2𝑥×3)−(2𝑥×𝑥) = 15+5𝑥−6𝑥−2𝑥^2 = 𝟏𝟓−𝒙−𝟐𝒙^𝟐

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