Answer: 

Explanation:
 For this exercise it is important to remember the following:
 1. By definition, the "Product" is the result of a multiplication.
 2. The "Difference" is defined as the result of a subtraction.
 3. The Distributive property states that:
 

 Keeping the above on mind, you know that:
 "The difference of 
 and
 and 
 " can be represented with the following expression:
" can be represented with the following expression:
 

 Therefore, "The product of -13 and the difference of 
 and
 and 
 " can be represented with this expression:
" can be represented with this expression:
 

 Finally, you must apply the Distributive property in order to simplify the expression. You get:
 
