Step 1
Given;
Required;
Step 2
Like terms are terms whose variables (and their exponents such as the 2 in x²) are the same. For example, 2x² and x² are like terms while 2x² and x are not like terms.
Therefore, I disagree with Bobbi. 2 and 5 are like terms but 2,x, and 5 are not like terms.