Provide an appropriate response.If f(x) = x2 + 3x and g(x) = x + 2, find (f ? g)(x) and (g ? f)(x).
A. x2 + 7x + 13; 3x + 2
B. x2 + 7x + 13; x2 + 3x + 2
C. x2 + 7x + 2; x2 + 3x + 2
D. x2 + 13; x2 + 3x + 2
Answer: B
Mathematics
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