Algebra-1

Question Analysis
This question assesses the student's ability to multiply polynomials and correctly combine like terms, which is essential for understanding polynomial operations.

Key Concept Explanation
The distributive property is used to multiply each term in the first polynomial by each term in the second polynomial, and then like terms are combined.

Step-by-step Solution
1. Distribute a (from the binomial) to each term in the trinomial:

2. Distribute (from the binomial) to each term in the trinomial: