Answer:
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 :)
