Given the functions f(x) and g(x), find the appropriate sum or difference function.f(x) = x3 - x + 7 and g(x) = -x + 7Find f(x) + g(x).
A. f(x) + g(x) = x3 - x2 + 14
B. f(x) + g(x) = x3
C. f(x) + g(x) = x2 + 12
D. f(x) + g(x) = x3 - 2x + 14
Answer: D
Mathematics
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