Posted by Emmett on Tuesday, August 14, 2012 at 11:05pm.
I am sure you meant: (x^3+2x^2+4)/(x^3+8) then = (x+2)(x+2)/( (x+2)(x^2 - 2x + 4) = (x+2)/)x^2 - 2x+4) , x ≠ -2