For the given functions f and g, find the requested function and state its domain.f(x) = 2x3 + 1; g(x) = 3x2 - 1Find f ? g.
A. (f ? g)(x) = 6x6 - 2x3 + 3x2 - 1; all real numbers
B. (f ? g)(x) = 2x3 + 3x2 - 1; all real numbers
C. (f ? g)(x) = 6x5 - 2x3 + 3x2 - 1; {x|x ? 0}
D. (f ? g)(x) = 6x5 - 2x3 + 3x2 - 1; all real numbers
Answer: D
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A. 7 ft
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C. 28 ft
D. 
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