3/(x+1)-2/(x+2)-1/x<0<br>[3x(x+2)-2x(x+1)-(x+1)(x+2)]/x(x+1)(x+2)<0<br>(3x²+6x-2x²-2x-x²-2x-x-2)/x(x+1)(x+2)<0<br>(x-2)/x(x+1)(x+2)<0<br>x=2 x=0 x=-1 x=-2
+ _ + _ +
-----------(-2)-----------(-1)----------(0)-----------(2)------------------
x∈(-2;-1) U (1;2)