|x+3|/(x²+5x+6)≥2
1)x<-3<br>-(x+3)/(x²+5x+6)≥2
-(x+3)/(x+3)(x+2)≥2
-1/(x+2)≥2
-1/(x+2)-2≥0
(-1-2x-4)/(x+2)≥0
(2x+5)(x+2)≤0
x=-2,5 x=-2
-2,5≤x<-2<br>нет решения
2)x>-3
(x+3)/(x+3)(x+2)≥2
1/(x+2)-2≥0
(1-2x-4)/(x+2)≥0
(2x+3)/(x+2)≤0
x=-1,5 x=-2
-2x∈(-2;-1,5]