tolong bantu cara penyelesaian nya bagaiman

Mapel : Matematika
Kelas : X SMA
Bab : Nilai Mutlak

Pembahasan :
|2 - x| = 1/2 |x|
(2 - x)² = 1/4x²
(2 - x)² - (x/2)² = 0
(2 - x + x/2)(2 - x - x/2) = 0
(4/2 - 2x/2 + x/2)(4/2 - 2x/2 - x/2) = 0
[(4 - x)/2][(4 - 3x)/2] = 0
(4 - x)(4 - 3x) = 0
x = 4
x = 4/3

Opsi D.