Carilah HP dari : a. |x+1|=|x-2| b. |2x+3|=|x+3|

Mapel : Matematika
Kelas : X SMA
Materi : Persamaan Nilai Mutlak

Pembahasan :
|x + 1| = |x - 2|
(x + 1)² = (x - 2)²
(x + 1)² - (x - 2)² = 0
(2x - 1)(3) = 0
6x - 3 = 0
6x = 3
x = 3/6
x = 1/2

Hp : {1/2}

————————————————
|2x + 3| = |x + 3|
(2x + 3)² = (x + 3)²
(2x + 3)² - (x + 3)² = 0
(3x + 6)(x) = 0
3x² + 6x = 0
x² + 2x = 0
x(x + 2) = 0
x = 0
x = -2

Hp : {-2 , 0}