In which of the following, the two expressions are like terms?
A. 7x and 7y
B. 7x and 9x
C. 7x and 7x2
D. 7x and 7xy
Answer:B
In which of the following, the two expressions are like terms?
A. 7x and 7y B. 7x and 9x C. 7x and 7x2 D. 7x and 7xy