Answer :
A and C are correct because 12j and 42j only have j so they are like terms. 17j3 and 18j3 all share J3 so they are like terms the others have mixed powers so they are all unlike terms
A. 12j and 42j
C. 17j³ + 18j³
This is because the variables and their powers are the same in these terms
C. 17j³ + 18j³
This is because the variables and their powers are the same in these terms