Let f(x) = 8x2 - 5x and g(x) = 7x + 9.Find the composite.f[g(-k)]
A. 56k2 - 35k + 9
B. 56k2 + 35k + 9
C. 392k2 - 973k + 603
D. 392k2 + 973k + 603
Answer: C
Mathematics
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