Answer:
Zero.
Explanation:
Anything times zero is zero.
 
 
Since you have something, as in 
 , times 0, then the result is 0 regardless of the value of the something part I mentioned.
, times 0, then the result is 0 regardless of the value of the something part I mentioned.
Needless work.
See that c=-2 and d=2.
So 5c=5(-2)=-10 and 

Plugging them in gives:
 
 
 
 
