For the given functions f and g, find the requested composite function.f(x) = x2 - 4, g(x) = x2 - 1;
Find (f ? g)(x).
A. x4 + 15
B. x4 - 8x2 + 15
C. x4 - 3
D. x4 - 2x2 - 3
Answer: D
Mathematics
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