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

Transcript

Ex 14.1, 3 Factorise. (v) z – 7 + 7 x y – x y z z – 7 + 7 x y – x y z = (z − 7) + (7xy − xyz) Both have x and y as common factor = (z − 7) + 𝑥y (7 − z) = (z −7) + 𝑥y × −(z − 7) = (z − 7) − 𝑥y (z − 7) (As (7 – z) = −(z − 7)) Taking (z − 7) common = (z − 7) (1 − 𝒙y)

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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.