Algebra-1

Question Analysis
This question tests the ability to simplify a polynomial and determine its degree, which involves combining like terms and understanding the concept of the highest degree.

Key Concept Explanation
To simplify a polynomial, combine like terms by adding or subtracting their coefficients. The degree of a polynomial is the highest degree among all its individual terms.

Step-by-step Solution
1. Start with the polynomial:
2. Distribute the 2:
3. Combine like terms:

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