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  1. Chapter 14 Class 8 Factorisation
  2. Concept wise

Transcript

Ex 14.2, 1 Factorise the following expressions. (iii) 25π‘š^2 + 30m + 9 25π‘š^2 + 30m + 9 = γ€–(5π‘š)γ€—^2+ 30π‘š+3^2 = γ€–(5π‘š)γ€—^2+ (2Γ—5π‘šΓ—3)+3^2 = γ€–(5π‘š)γ€—^2+ 3^2+(2Γ—5π‘šΓ—3) Using (π‘Ž+𝑏^2 )=π‘Ž^2+𝑏^2+2π‘Žπ‘ Here, π‘Ž = 5m and b = 3 = γ€–(πŸ“π’Ž+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.