Tentukan hasil himpunan pertidaksamaan berikut|2x+4|<8

2x+4 < 8
2x < 8 – 4
2x < 4
x < 4/2
x < 2

-(2x+4) < 8
-2x-4 < 8
-2x < 8 + 4
-2x< 12
x > 12/(-2)
x > -6

hp { -6 < x < 2 }

semoga bermanfaat -'-

Jika |x| = a maka -a < x < a

-8 < 2x + 4 < 8

-8 – 4 < 2x < 8 – 4

-12 < 2x < 4

-12/2 < x < 4/2

-6 < x < 2