factorise 16a³-54b³
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Answer:
2(2a - 3b)(4a² + 6ab + 9b²)
Step-by-step explanation:
16a³ - 54b³ = 2(8a³ - 27b³)
2[(2a)³ - (3b)³] = 2(2a - 3b)(4a² + 6ab + 9b²)
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