Answer:
Value of given expression
when p = -4 and q = 2 is -4.
Step-by-step explanation:
Given expression ,
We have to evaluate the value of the expression when p = -4 and q = 2
Consider the expression given 
To find the value a the given value just put the values in the given expression
becomes 
Solve further to get its value,


Thus, value of given expression
when p = -4 and q = 2 is -4.