text: Ex 9.5
  
  Chapter 9 Class 8 Algebraic Expressions and Identities
  Serial order wise
  
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  ### Transcript
  
  Ex 9.5, 3 Find the following squares by using the identities. (vi) (2π₯π¦+5π¦)^2 (2π₯π¦+5π¦)^2 (π+π)^2=π^2+π^2+2ππ Putting π = 2π₯π¦ & π = 5π¦ = (2π₯π¦)^2+(5π¦)^2+2(2π₯π¦)(5π¦) = (2^2Γπ₯^2Γπ¦^2 )+(5^2Γπ¦^2 )+(2Γ2Γ5)Γπ₯Γ(π¦Γπ¦) = ππ^π π^π+πππ^π+ππππ^π