The product of this is 90
        
                    
             
        
        
        
The expression can be solved by expanding the bracket and multiplying out the terms


Therefore, the expression can be simplified as;

Alternatively, using the theorem of difference of two squares, which is

Hence, 

 
 
        
             
        
        
        
173+32=205 , so 205 times 5 would equal 1,025 . so the answer would be 1,025 .