" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Verified answer
Nilai Mutlak1) |2x - 1| = 3
jika 2x -1 ≥ 0 --> x ≥ 1/2
2x - 1 = 3
2x = 4
x = 2
jika 2x -1 < 0 --> x < 1/2
-(2x -1) = 3
2x - 1 = - 3
2x = - 2
x = - 1
...
2)
|3x +2| = | x- 2|
jika 3x +2 ≥ 0 atau x - 2 ≥0
3x + 2 = x - 2
2x = - 4
x = -2
jika 3x +2 ≥ 0 atau x - 2 < 0
3x + 2 = -(x -2)
3x + 2 = -x + 2
4x = 0
x = 0
jika 3x+2 < 0 atau x - 2 < 0
-(3x+2) = -(x - 2)
-3x - 2 = -x + 2
- 2x = 4
x = - 2
HP x = { 0, -2)