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  1. Chapter 14 Class 8 Factorisation
  2. Serial order wise

Transcript

Ex 14.2, 3 Factorise the expressions. (vii) 5๐‘ฆ^2 โ€“ 20y โ€“ 8z + 2yz 5๐‘ฆ^2 โ€“ 20y โ€“ 8z + 2yz = (5๐‘ฆ^2 โ€“ 20y) + (โˆ’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 โˆ’ 4) + 2z (โˆ’4 + y) = 5y (y โˆ’ 4) + 2z (y โˆ’ 4) Taking (y โˆ’ 4) as common, = (y โˆ’ 4) (5y + 2z)

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.