Question

factorise:-
$27x {}^{3} - {y}^{3}$

Answer 1

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$\underline\bold{\huge{ANSWER \: :}}$

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27x³ - y³

= (3x)³ - (y)³

= (3x-y) {(3x)² + 3xy + (y)²}

= (3x-y) (9x²+3xy+y²) [ANSWER]

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Answer 2

27x³ - y³

= (3x)³ - (y)³

= (3x-y) {(3x)² + 3xy + (y)²} 

= (3x-y) (9x²+3xy+y²) [ANSWER]