Simplify by removing grouping symbols and combining like terms.3x(4x2 - 6x - 1) - 4x(2 - x)
A. 12x2 - 14x - 11
B. 12x3 - 15x - 1
C. 12x3 - 22x2 - 11x
D. 12x3 - 14x2 - 11x
Answer: D
Mathematics
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A. 
B. 
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D. 
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