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

Transcript

Ex 14.2, 3 Factorise the expressions. (ix) 6xy โ€“ 4y + 6 โ€“ 9x 6xy โ€“ 4y + 6 โ€“ 9x = (6๐‘ฅy โ€“ 4y) + (6 โ€“ 9x) Both have 2 and y as common factors Both have 3 as common factor = 2y (3x โ€“ 2) + 3 (2 โ€“ 3x) = 2y (3๐‘ฅ โ€“ 2) + 3 ร— โˆ’1 (3๐‘ฅ โ€“ 2) = 2y (3๐‘ฅ โ€“ 2) โ€“ 3 (3๐‘ฅ โ€“ 2) Taking (3๐‘ฅ โˆ’ 2) as common, = (3๐‘ฅ โˆ’ 2) (2y โˆ’ 3) (As (2 โˆ’ 3๐‘ฅ) = โˆ’1 ร— (3๐‘ฅ โˆ’ 2))

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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.