Solve the problem. Assume all variables represent nonnegative real numbers.For f(x) = x + 
and g(x) = x - 
, find (f ? g)(x).
A. (f ? g)(x) = x2 + 5
B. (f ? g)(x) = x2 - 2x
- 5
C. (f ? g)(x) = x2 - 5
D. (f ? g)(x) = x2 - 2x
+ 5
Answer: C
Mathematics
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