Ex 9.5, 3 - Chapter 9 Class 8 Algebraic Expressions and Identities - Part 2

Advertisement

  1. Chapter 9 Class 8 Algebraic Expressions and Identities
  2. Serial order wise

Transcript

Ex 9.5, 3 Find the following squares by using the identities. (ii) (π‘₯𝑦+3𝑧)^2 (π‘₯𝑦+3𝑧)^2 (π‘Ž+𝑏)^2=π‘Ž^2+𝑏^2+2π‘Žπ‘ Putting π‘Ž = π‘₯𝑦 & 𝑏 = 3𝑧 = (π‘₯𝑦)^2+(3𝑧)^2+2(π‘₯𝑦)(3𝑧) = (π‘₯^2×𝑦^2 )+(3^2×𝑧^2 )+(2Γ—3)Γ—(π‘₯×𝑦×𝑧) = 𝒙^𝟐 π’š^𝟐+πŸ—π’›^𝟐+πŸ”π’™π’šπ’›

About the Author

Davneet Singh's photo - Teacher, Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.