|Class 7 Maths Algebraic Expressions||Like and Unlike Terms|
Like and Unlike Terms
Like terms are terms that have the same variables and powers. The coefficients do not need to match.
Ex: 8xy2 and −5xy2 are like terms because they have the same variables and power.
Unlike terms are terms that have not the same variables or powers.
Ex: 3abc and 3xyz are unlike terms because they have different variables.
Problem: Identify like terms in the following:
-xy2, -4yx2, 8x2, 2xy2, 7y, -11x2, -100x, -11yx, 20x2 y, -6x2, y, 2xy, 3x
Like terms are:
(i) –xy2, 2xy2 (ii) -4yx2, 20x2 y (iii) 8x2, -11x2, -6x2 (iv) 7y, y
(v) -100x, 3x (vi) -11yx, 2xy