Tentukan nilai mutlak daei 4 |3x + 2| = 6

Bab Nilai Mutlak
Matematika SMA Kelas X

4 . |3x + 2| = 6
|3x + 2| = 6/4
|3x + 2| = 3/2

3x + 2 = 3/2
3x = 3/2 - 2
3x = 3/2 - 4/2
x = -1/2 . 1/3
x = -1/6

3x + 2 = -3/2
3x = -3/2 - 2
3x = -3/2 - 4/2
x = -7/2 . 1/3
x = -7/6

HP = { -7/6, -1/6 }

12x + 8 =6
12x = 6-8
12x = -2
x = -2/12
x= -1/6
atau
12x + 8 = -6
12x = -6-8
12x = -14
x = -14/12
x= -7/6
x= { -1/6 , -7/6 }