Rozwiąż nierówność albo równanie
a) |x+4|=14
b)|x-100|=1
c)|x+2|<3
d)|x-4|>2
e) |x+6|>3
f)|x-8|<1
zad2
Oblicz
a) |8-5|-|-5+2|=
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a) |x+4|= 14
x+4= 14 lub x+4= -14
x=10 x=-18
b) |x-100|=1
x+100=1 lub x+100= -1
x=-99 x=-101
c)|x+2|<3
x+2<3 lub x+2<-3
x<1 x<-5
d) |x-4|>2
x+4>2 lub x+4>-2
x> -2 x>-6
e) |X+6|>3
x+6>3 lub x+6>-3
x>-3 x> -9
f) |x-8|<1
x+8<1 lub x+8<-1
x<-7 x<-9
2. |8-5|-|-5+2|= |3|-|-3|=3-(+3)= 3-3=0
1. a) X+4=14
X=14-4
X=10
B) X-100=1
X=100+1
X=101
C) X+2<3
X=0
D) X-4>2
X=4+2+NP.4
X=10
E) X+6>3
X=6+3
X=9
F)X-8<1
X=8+1
x=9-1
x=8
zad2
=3--3=6