Algebra-2

Question Analysis
This question tests the student's understanding of the concept of like terms in polynomial functions, specifically that like terms have the same variable and exponent.

Key Concept Explanation
The key concept here is the definition of like terms. Like terms in a polynomial are terms that have the same variable and the same exponent.

Step-by-step Solution
1. Recall the definition of like terms: terms with the same variable-exponent...