Let f(x) = 8x2 - 5x and g(x) = 7x + 9. Find the composite.g[f(k)]

A. 392k2 + 973k + 603
B. 392k2 - 973k + 603
C. 56k2 + 35k + 9
D. 56k2 - 35k + 9


Answer: D

Mathematics

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