Answer:
5/2
Step-by-step explanation:
Possible rational roots are ...
±(divisor of 9)/(divisor of 2)
So, the possibilities are ...
±1/2, ±1, ±3/2, ±3, ±9/2, ±9
The one on your list that is not among these is 5/2.
5/2 is not a possible rational root.
The area is
I assume that the figure is a square
The area of a square is equal to
where
b is the length side of the square
In this problem we have
substitute in the formula
It is already Parraell.