Объяснение:
1) 5-Х/Х+2>0
{5-X>0 X+2>0
{5-X<0 X+2<0
{X<5 x>-2
{X>5 X<-2
X⊂-2.5
2)(X+2)^2=1
X+2=±1
X+2=-1
X+2=1
X= -3
X= -1
X1= -3
X2= -1
3)5/X<1 . X≠0
X∈{5 .+∞}
X∈{-∞.0}
X∈{-∞.0}∪{5 .+∞}
4)
