Answer: 

Explanation:
We are given a function : 

To find the value of 
 , we need to substitute the value of x = -18 in the given function h(x).
 , we need to substitute the value of x = -18 in the given function h(x).
Thus, substitute x= -18 in the given function h(x), we get
 
 (product of a negative and positive sign is negative)
 (product of a negative and positive sign is negative)

Hence, the value of 
