Ex 12.2, 4 - (a) What should be added to x^2 + xy + y^2 to obtain

 

  1. Chapter 12 Class 7 Algebraic Expressions
  2. Serial order wise

Transcript

Ex 12.2, 4 (a) What should be added to x2 + xy + y2 to obtain 2x2 + 3xy? (x2 + xy + y2) + Expression = (2x2 + 3xy) Expression = (2x2 + 3xy) − (x2 + xy + y2) Putting like terms below like terms and subtracting them Answer is x2 + 2xy − y2

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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.