4<|x+1|<6 Agaiin :V dibantu yukk, dibantuu:g

Bab Nilai Mutlak
Matematika SMA Kelas X

4 < |x + 1| < 6

|x + 1| < 6

-6 < x + 1 < 6
-6 - 1 < x + 1 - 1 < 6 - 1
-7 < x < 5

4 < |x + 1|
|x + 1| > 4

x + 1 > 4
x > 4 - 1
x > 3

x + 1 < -4
x < -4 - 1
x < -5

x < -5 atau x > 3

maka,

-7 < x < -5 atau 3 < x < 5