Perform the indicated operation.(3a - b)3
A. 27a3 -27a2b + 9ab2 - b3
B. 27a3 - 9a2b + 3ab2 - b3
C. 27a3 - b3
D. 27a3 - 27a2b - 9ab2 - b3
Answer: A
Mathematics
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