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Verified answer
Ekspansi Aljabar.Gunakan segitiga Pascal!
(x + y)³ = x³ + 3x²y + 3xy² + y³
(3a + 2b)³ = (3a)³ + 3(3a)²(2b) + 3(3a)(2b)² + (2b)³
= 27a³ + 3(9a²)(2b) + 3(3a)(4b²) + 8b³
= 27a³ + 54a²b + 36ab² + 8b²