Algebra-1

Question Analysis
This question tests the student's ability to subtract polynomials, focusing on the process of changing signs and combining like terms, with a higher degree of complexity.

Key Concept Explanation
To subtract polynomials, change the sign of each term in the polynomial being subtracted and then combine like terms.

Step-by-step Solution
1. Start with the given expression:
2. Change the signs of the terms in the second polynomial:
3. Combine like terms:
For terms:

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