For the given functions f and g, find the requested function and state its domain.f(x) = 2x3 + 1; g(x) = 3x2 + 2Find f ? g.
A. (f ? g)(x) = 6x6 + 4x3 + 3x2 + 2; all real numbers
B. (f ? g)(x) = 6x5 + 4x3 + 3x2 + 2; {x|x ? 0}
C. (f ? g)(x) = 2x3 + 3x2 + 2; all real numbers
D. (f ? g)(x) = 6x5 + 4x3 + 3x2 + 2; all real numbers
Answer: D
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