Final answer:
The expression 
 simplifies to 
after distributing the negative sign through the second set of parentheses and combining like terms.
Step-by-step explanation:
The simplified form of the expression (5x2 + 2x + 11) - (7 + 4x - 2x2) involves combining like terms after distributing the negative sign through the second parentheses. Here's how to do it step by step:
- Distribute the negative sign to each term inside the second parentheses: 

 - Combine like terms: 

 - Simplify each group:

 
Therefore, the simplified form of the expression is 
