The basic formula for factoring the difference between two perfect cubes is
(a3 - b3) = (a - b)(a2 + ab + b2).
Substituting the given polynomial yields
(27x3 - 8) = (3x - 2)(9x2 + 6x + 4).
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if it is to the 2nd power it is 64 if it is to the 3rd power it is 512 .
2 to the 3rd power = 8
2 to the 3rd power = 2 * 2 * 2 = 8
23 = 8