Ex 12.2, 3 (vii) - Chapter 12 Class 8 Factorisation

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Ex 12.2, 3 Factorise the expressions. (vii) 5𝑦^2 – 20y – 8z + 2yz5𝑦^2 – 20y – 8z + 2yz = (5𝑦^2 – 20y) + (−8z + 2yz) = 5y (y − 4) + 2z (−4 + y) = 5y (y − 4) + 2z (y − 4) Taking (y − 4) as common, = (y − 4) (5y + 2z) Both have 5 and y as common factors Both have 2 and z as common factors

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