(don’t answer just for points or i will report)

callens expression makes sense because they are showing that the five is negative and it is also being multiplied to the set of parenthesis.

demetrius's expression is a simplified version of callens. Using the parenthesis around the -5 shows that not only is that number negative, but it will also be multiplied to the -4 in the parenthesis.

Step-by-step explanation:

i hope this helps :)