Формула:
(a - b)³ = a³ - 3a²b + 3ab² -b³
Решение:
(2x - 3y²)³ = (2x)³ - 3×(2x)²×3y² + 3×2x×(3y²)² - (3y²)³ = 8x³ - 36x²y + 54xy⁴ - 27y⁶
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Verified answer
Формула:
(a - b)³ = a³ - 3a²b + 3ab² -b³
Решение:
(2x - 3y²)³ = (2x)³ - 3×(2x)²×3y² + 3×2x×(3y²)² - (3y²)³ = 8x³ - 36x²y + 54xy⁴ - 27y⁶