Which one of the following pairs of terms is composed of like terms? a. 4mn, 3my b. 2a, 2b c. –3x, +3y d. abc, cab

D.abc,cab

Step-by-step explanation:

We are given that some pairs of terms

We have to find the pairs of terms is composed of like terms.

Like terms : In algebra , like terms are those terms in which variables with power are same in the terms.

A.4mn,3my

In given pair ,variables  n and y are not same .Therefore, 4 mn and 3 my are not like terms.

B. 2a , 2b

In given pair variable a in first term and variable b in second term are not same. Therefore, given pair are not like terms.

C.-3x,3y

Variable x and y are not same therefore, it is not the pair of like terms.

D.abc, cab

In given pair  variable a with power is same in both terms, variable b with power is same in both terms and variable c with power is same in both terms.Hence, the pair is a pair of like terms.

D.abc cab.

step-by-step explanation: