1 . (a - 2b)3- এর মান কত?
- A. a3 - 8b3 - 6a2b + 12ab2
- B. a3 + 8b3 + 6a2b + 12ab2
- C. a3 + 8b3 - 12ab
- D. a3 -8b3 - 12a2b - 6ab3
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