factorise acube+8bcube
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Answer:
(a+2b) (a²-2ab + 4b²)
Step-by-step explanation:
a³ + 8b³
= a³ + (2b)³
= (a+2b) (a²-a(2b) + (2b)²)
= (a+2b) (a²-2ab + 4b²)
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