Answer:
[see below]
Step-by-step explanation:

Just o be sure you are asking what (X) equals
X has to be inside the radical.
It would be

Simplify the radical by breaking the radicand up into a product of known factors.
Answer:
-4
Step-by-step explanation:
('+')('-') = ('-')
Therefore,
(+2)(-2) = (-4)