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  1. Chapter 14 Class 8 Factorisation
  2. Concept wise

Transcript

Ex 14.2, 1 Factorise the following expressions. (i) π‘Ž^2 + 8a + 16 a^2 + 8a + 16 =γ€– π‘Žγ€—^2 + 8a + 4^2 =γ€– π‘Žγ€—^2 + (2 Γ— a Γ— 4) + 4^2 = γ€– π‘Žγ€—^2 + 4^2 + (2 Γ— a Γ— 4) = γ€–(𝒂+πŸ’)γ€—^𝟐 Using (π‘₯+𝑦^2)=π‘₯^2+𝑦^2+2π‘₯𝑦 Here, π‘₯ = a and y = 4 = γ€–(𝒂+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.