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  1. Chapter 14 Class 8 Factorisation
  2. Concept wise

Transcript

Ex 14.2, 1 Factorise the following expressions. (iv) 49𝑦^2 + 84yz + 36𝑧^2 49𝑦^2 + 84yz + 36𝑧^2 = γ€–(7𝑦)γ€—^2+84𝑦𝑧+γ€–(6𝑧)γ€—^2 = γ€–(7𝑦)γ€—^2+ 2Γ—7𝑦×6𝑧+γ€–(6𝑧)γ€—^2 = γ€–(7𝑦)γ€—^2+ γ€–(6𝑧)γ€—^2+ 2Γ—7𝑦×6𝑧 Using (π‘Ž+𝑏^2 )=π‘Ž^2+𝑏^2+2π‘Žπ‘ Here, π‘Ž = 7y and b = 6z = γ€–(πŸ•π’š+πŸ”π’›)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.