Hitunglah nilai x mutlak dari |x-3|=6

Bab Nilai Mutlak
Matematika SMA Kelas X

|x - 3| = 6

x - 3 = 6
x = 6 + 3
x = 9

x - 3 = -6
x = -6 + 3
x = -3

HP = {9, -3|

Mapel : Matematika
Kelas : X SMA
Bab : Mutlak

Pembahasan :
|x - 3| = 6
(x - 3)² = 6²
(x - 3)² - 6² = 0
(x - 3 + 6)(x - 3 - 6) = 0
(x + 3)(x - 9) = 0
x = -3
x = 9

Hp : {-3 , 9}