You can put this solution on YOUR website! remember the difference of cubes is a3 – b3 = (a – b)(a2 + ab + b2) eq 1
so lets take our problem and rewrite it as (2x)^3-3^3 where a is 2x and b is 3
so substitute those values in the right side of eq 1
(2x-3)(2x^2+6x+9) is our answer.
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