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Ex 14.2, 3 (vii) Class 8 Maths - Factorise 5y^2 - 20y - 8z + 2yz


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Ex 14.2, 3 Factorise the expressions. (vii) 5𝑦^2 – 20y – 8z + 2yz 5𝑦^2 – 20y – 8z + 2yz = (5𝑦^2 – 20y) + (−8z + 2yz) Both have 5 and y as common factors Both have 2 and z as common factors Both have 2 and z as common factors = 5y (y − 4) + 2z (−4 + y) = 5y (y − 4) + 2z (y − 4) Taking (y − 4) as common, = (y − 4) (5y + 2z)

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.