Question 384876
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Hi,         
Factoring completely
 8x^3 - 27 = (2x)^3 - 3^2 
In general: x^3 - a^3 = (x-a)(x^2 -ax + a^2)
In this example:  x is '2x'
(2x + 3)((2x)^2 - (2x)(3) + 3^2) 
(2x + 3)(4x^2 - 6x + 9 )