If x = 3, then the value of 27x3

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x =	3	(Given)
	2

∴ 27x³ – 54x² + 36x – 11
= (3x)³ – 3 × (3x)² × 2 + 3 × 3x
(2)² – (2)³ – 3
= (3x – 2)³ – 3
[∵ (a – b)³ = a³ – 3a² b + 3ab² – b³]

=		3 × 3	− 2		³	− 3
		2

=		9	− 2		³	− 3
		2

=		9 − 4		³	− 3
		2

=		5		³	− 3
		2

=	125	− 3
	8

=	125 − 24
	8

=	101
	8

12	5
	8