What happens to an expression when you combine like terms?

• A. It becomes more complex
• B. It remains the same
• C. It becomes simpler
• D. It reverses the expression

Answer: (C)

When you combine like terms, the expression becomes simpler. Combining like terms involves identifying and adding or subtracting terms that have the same variable and exponent, which streamlines the expression. For example, in the expression (2x + 3x), combining the like terms results in (5x), which is a more straightforward representation of the same quantity.

This simplification process reduces the number of terms in the expression, making it easier to work with. Instead of dealing with multiple terms, you end up with a condensed form that retains the same overall value but is less cluttered. Therefore, the simplification makes mathematical operations, such as addition, subtraction, or further manipulation, more manageable and clear.