You have to distribute the minus sign to the second parenthesis, changing the sign of every term:

 
        
             
        
        
        
For this case we have that according to the order of algebraic operations PEMDAS, the multiplications have priority over the addition and subtraction, then, we have the following expression:

Thus, the value of the expression is 1000.
Answer:

 
        
                    
             
        
        
        
25 is the anwser you're looking for