Factorise : x³ + 216³ + 8z³ - 36xyz
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Step-by-step explanation:
Given that,
27x³ + 216y³ + 8z³ - 72xyz
= ( 3x )³ + ( 6y )³ + ( 2z )³ + 2 ( 3x ) ( 6y ) ( 2z )
= ( 3x + 6y + 2z )² is the answer
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