Question

Tolong bantu saya ini soal x=|x+2|

Answer 1

Verified answer

Materi : Persamaan Nilai Mutlak

Pembahasan :
x = |x + 2|
x² = (x + 2)²
x² - (x + 2)² = 0
(x + x + 2)(x - x - 2) = 0
(2x + 2)(-2) = 0
-4x - 4 = 0
4x + 4 = 0
x + 1 = 0
x = -1 ——» Tidak memenuhi

Hp : { }