How like and unlike terms are different from each other?
The terms which have the same literal coefficients raised to the same powers but may only differ in numerical coefficient are called similar or like terms.
For example:
(i) 3m and –7m are like terms
(ii) z and 3/2 z are like terms
The terms which do not have the same literal coefficients raised to the same powers are called dissimilar or unlike terms.
For example:
(i) 9p and 9q are unlike terms
(ii) x/3 and y/3 are unlike terms
Solved examples on like and unlike terms:
Here we see that all the terms of the given expression are unlike.
4. List out the like terms from each set:
(i) 7a, -5a, -8b, -a, a/3
7a, -5a, -a, a/3 are the set of like terms.
(ii) –xy, 3y, 5xy, -x, -xy/11
–xy, 5xy, -xy/11 are the set of like terms.
(iii) 2p^{3}q^{2}, -4p^{2}q^{3}, 7q^{2}p^{3}, -2p^{3}q^{2}Note: We can add or subtract like terms but in case of unlike terms we cannot add or subtract.
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● Terms - Worksheets
Worksheet on Like and Unlike Terms
Worksheet on Addition of Like Terms
Worksheet on Subtraction of Like Terms
Worksheet on Adding and Subtracting Like Terms
Worksheet on Combining Like Terms
Worksheet on Addition of Unlike Terms