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

Transcript

Ex 14.2, 2 Factorise. (vii) (๐‘ฅ^2 โ€“ 2xy + ๐‘ฆ^2) โ€“ ๐‘ง^2 (๐‘ฅ^2 โ€“ 2xy + ๐‘ฆ^2) โ€“ ๐‘ง^2 = (๐‘ฅ^2+๐‘ฆ^2 โˆ’ 2๐‘ฅy) โ€“ ๐‘ง^2 Using (๐‘Ž โˆ’ ๐‘)^2=๐‘Ž^2 + ๐‘^2 โˆ’ 2ab Here a = ๐‘ฅ and b = ๐‘ฆ = (๐‘ฅโˆ’y)^2 โ€“ ๐‘ง^2 Using ๐‘Ž^2 + ๐‘^2 = (a + b) (a โˆ’ b) Here a = ๐‘ฅ โˆ’ y and b = z = (๐’™ โˆ’ y + z) (๐’™ โˆ’ y โˆ’ z)

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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.