Are ads bothering you?
Ex 12.2, 4 - Chapter 12 Class 7 Algebraic Expressions
Last updated at Oct. 25, 2021 by Teachoo
Addition and Subtraction of Algebraic Expressions
Chapter 12 Class 7 Algebraic Expressions
Concept wise
- Definitions
- Terms, Factors and Coefficients
- Monomials, Binomials, Trinomials
- Like and unlike terms
-
Addition and Subtraction of Algebraic Expressions
- Finding value of expression
- Number patterns
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
