Algebra-2

Question Analysis
This question tests the understanding of the degree of a polynomial and how it is preserved when combining like terms.

Key Concept Explanation
The degree of a polynomial is the highest power of the variable in the polynomial. When combining like terms, the degree of the resulting polynomial is determined by the highest degree term present in the original polynomials.

Step-by-step Solution
1. Identify the degrees of the given polynomials: (degree 3) and (degree 3).
2. Combine like terms:

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