Решение:
1) (а + 2b)³ = a³ + 6a²b + 12ab² + 8b³
2) (x - 3y)³ = x³ - 9x²y + 27xy² - 27y³
3) (2m - 3n)³ = 8m³ - 36m²n + 54mn² - 27n³
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Verified answer
Решение:
1) (а + 2b)³ = a³ + 6a²b + 12ab² + 8b³
2) (x - 3y)³ = x³ - 9x²y + 27xy² - 27y³
3) (2m - 3n)³ = 8m³ - 36m²n + 54mn² - 27n³