Combine.(5x3 - 14x2 - 12) - (9x3 + 15x + 6)
A. -4x3 - 29x2 - 18
B. -4x3 - 14x2 - 15x - 18
C. -4x3 - 14x2 + 15x - 18
D. -4x3 - 14x2 - 15x - 6
Answer: B
Mathematics
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