c)
-3/2x ≥ 2
-3/2x-2 ≥ 0|:(-1) , dla x≠0
3/2x+2 ≤ 0
3/2x+2·2x/2x ≤ 0
(3+2x)/2x ≤ 0 |:2
x(2x+3) ≤ 0
x=0 ∨ 2x+3=0|:2
x=0 ∨ x=-3/2
x∈<-3/2,0)
b)
2/x ≤ -1 , dla x≠0
2/x+1 ≤ 0
2/x+x/x ≤ 0
(2+x)/x ≤ 0
x(x+2) ≤ 0
x=0 ∨ x+2=0
x=0 ∨ x=-2
x∈<-2,0)
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c)
-3/2x ≥ 2
-3/2x-2 ≥ 0|:(-1) , dla x≠0
3/2x+2 ≤ 0
3/2x+2·2x/2x ≤ 0
(3+2x)/2x ≤ 0 |:2
x(2x+3) ≤ 0
x=0 ∨ 2x+3=0|:2
x=0 ∨ x=-3/2
x∈<-3/2,0)
b)
2/x ≤ -1 , dla x≠0
2/x+1 ≤ 0
2/x+x/x ≤ 0
(2+x)/x ≤ 0
x(x+2) ≤ 0
x=0 ∨ x+2=0
x=0 ∨ x=-2
x∈<-2,0)