1.
х-3 ≤ 0
х+2
ОДЗ: х≠-2
(х-3)(х+2)≤0
х=3 х= -2
+ - +
-------- -2 ------------ 3 -----------
\\\\\\\\\\\\\\\\\
х∈(-2; 3]
2.
2/x < x/2
ОДЗ: х≠0
2 - х <0<br>x 2
4-x² <0<br> 2x
-(x²-4) <0<br> 2x
-(x-2)(x+2)<0<br> 2x
x(x-2)(x+2)>0
x=0 x=2 x= -2
- + - +
------- -2 --------- 0 ---------- 2 ------------
\\\\\\\\\\\ \\\\\\\\\\\\\\
x∈(-2; 0)U(2; +∞)