Oblicz i podaj przedział liczbowy :
|x+4|>6
|x+5|≤4
|x-6|<4
|x-½|≤4
x+4>6 i x+4<-6
x>2 x+ 4<-2 (2.-2)
x+5≤4 x+5≥-4
x≤-1 x≥1 <-1,1>
kolejne to bedzie x>10 i x<-2
(10,-2)
no to x+ ½≤4
x≥3½ no i x≤ 4½ no i masz <3½, 4½> good
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|x+4|>6
x+4>6 i x+4<-6
x>2 x+ 4<-2 (2.-2)
x+5≤4 x+5≥-4
x≤-1 x≥1 <-1,1>
kolejne to bedzie x>10 i x<-2
(10,-2)
no to x+ ½≤4
x≥3½ no i x≤ 4½ no i masz <3½, 4½> good