Multiply.3a2x4(-5a7x8 + 2x6 - 11a)
A. -15a7x8 + 6x6 - 33a
B. -15a9x12 + 6a3x10 - 11a
C. -15a9x12 + 6a2x10 - 33a3x4
D. -15a9x12 + 2x6 - 11a
Answer: C
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A. 
B. 
C. 
D. 