Algebra-1

Question Analysis
This question tests the student's ability to add two quadratic functions and simplify the result. It requires understanding of combining like terms and the closure property of function addition.

Key Concept Explanation
When adding functions, we combine the coefficients of like terms. The resulting function is also a polynomial of the same degree as the original functions.

Step-by-step Solution
1. Start with the given functions: and
2. Add the functions: