Answer:

Explanation:

To simplify this expression, use the order of operations (PEMDAS):
P arentheses
E xponents
M ultiplication
D ivision
A ddition
S ubtraction
First, simplify what is in the parentheses.

Remember that any number squared (
) is positive, so:

Therefore,



We can now replace the parentheses in the original expression with 16.


Finally, simplify by multiplying and dividing.


