Menghitung nilai × |×|/|×-2|=|-10|,×£2

Materi : Persamaan Mutlak

Pembahasan :
|x| / |x - 2| = |-10|
|x| / |x - 2| = 10
|x| = |10x - 20|
x² = (10x - 20)²
(10x - 20)² - x² = 0
(10x - 20 + x)(10x - 20 - x) = 0
(11x - 20)(9x - 20) = 0
x = 20/11
x = 20/9

Hp : {20/9 , 20/11}