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

Transcript

Ex 14.2, 1 Factorise the following expressions. (v) 4π‘₯^2 – 8x + 4 4π‘₯^2 – 8x + 4 = 4 (π‘₯^2βˆ’2π‘₯+1) = 4 (π‘₯^2+1βˆ’2π‘₯) = 4 (π‘₯^2+1^2βˆ’2Γ—π‘₯Γ—1) = πŸ’ γ€–(π’™βˆ’πŸ)γ€—^𝟐 Using (π‘Žβˆ’π‘^2 )=π‘Ž^2+𝑏^2βˆ’2π‘Žπ‘ Here, π‘Ž = x and b = 1 = πŸ’ γ€–(π’™βˆ’πŸ)γ€—^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.