SOLUTION: hi, i was given the question : (8x^3-27)/(2x-3) I'm not sure how to do this problem. Help would be greatly appreciated.

Algebra ->  Rational-functions -> SOLUTION: hi, i was given the question : (8x^3-27)/(2x-3) I'm not sure how to do this problem. Help would be greatly appreciated.      Log On


   



Question 385103: hi, i was given the question :
(8x^3-27)/(2x-3)
I'm not sure how to do this problem. Help would be greatly appreciated.

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
%288x%5E3-27%29%2F%282x-3%29
You should recognize the numerator as the "difference of cubes" which can be factored to
%28%282x-3%29%284x%5E2%2B6x%2B9%29%29%2F%282x-3%29
:
Now you can see the (2x-3) can be canceled leaving:
4x^2 + 6x + 9
:
:
If you are not familiar with special factoring, look up "difference of cubes" in the index of your book and they will tell you about special factoring