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Ex 14.2, 1 (v) - Factorise 4x^2 – 8x + 4 - Chapter 14 Class 8


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Ex 14.2, 1 Factorise the following expressions. (v) 4𝑥^2 – 8x + 4 4𝑥^2 – 8x + 4 = 4 (𝑥^2−2𝑥+1) = 4 (𝑥^2+1−2𝑥) = 4 (𝑥^2+1^2−2×𝑥×1) = 𝟒 〖(𝒙−𝟏)〗^𝟐 Using (𝑎−𝑏^2 )=𝑎^2+𝑏^2−2𝑎𝑏 Here, 𝑎 = x and b = 1 = 𝟒 〖(𝒙−𝟏)〗^𝟐

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