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