Question 1084832
{{{2(x+2)/((x+5)(x-1)) - 1/(x+5) = (2(x+2) - (x-1))/((x+5)(x-1))= (2x+4-x+1)/((x+5)(x-1)) = cross(x+5)/(cross(x+5)(x-1)) = 1/(x-1) }}}