Final answer:
The student's question relates to simplifying an algebraic expression, which is a middle school Mathematics topic. Due to a typo, the expression cannot be accurately simplified but generally involves changing the sign before applying addition or subtraction.
Step-by-step explanation:
The subject of this question is Mathematics. The question appears to involve algebraic expression simplification, which is a common topic in middle school mathematics. When simplifying an algebraic expression, each term within the parentheses should be considered according to the sign preceding it. For example, when you see an expression like 5-(+3), this is the same as 5-3, yielding a result of 2. In another instance, if we need to subtract a negative number, such as subtracting -6 from 2, we change the subtraction to addition, resulting in 2-(-6) which is equivalent to 2+6, giving us a result of 8.
The question might be asking to simplify an algebraic expression through addition and subtraction of monomials and polynomials. However, there seems to be a typo in the original question, making it unclear. Without the correct expression, I cannot provide a detailed solution to this problem.