Ex 12.2, 2 (iii) - Factorise 49x^2 - 36 - Chapter 14 Class 8 - Ex 12.2

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Ex 12.2, 2 Factorise. (iii) 49𝑥^2 – 3649𝑥^2 – 36 = (7𝑥)^2−(6)^2 Using 𝒂^𝟐−𝒃^𝟐=(𝑎+𝑏)(𝑎−𝑏) Here 𝑎=7𝑥 and 𝑏=6 = (𝟕𝒙+𝟔) (𝟕𝒙−𝟔)

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