2+|x+3|-|3x+1|=6 tolong bantuan nya

Materi : Persamaan Mutlak

Pembahasan :
2 + |x + 3| - |3x + 1| = 6
2 + |x + 3| = 6 + |3x + 1|
(2 + x + 3)² = (6 + 3x + 1)²
(x + 5)² = (3x + 7)²
(3x + 7)² - (x + 5)² = 0
(3x + 7 + x + 5)(3x + 7 - x - 5) = 0
(4x + 12)(2x + 2) = 0
x = -3
x = -1

Hp : {-3 , -1}