| x - 2 | = | x + 5 | himpunan penyelesaian?

Materi : Persamaan Mutlak

Pembahasan :
|x - 2| = |x + 5|
(x - 2)² = (x + 5)²
(x + 5)² - (x - 2)² = 0
7(2x + 3) = 0
2x + 3 = 0
2x = -3
x = -3/2

Hp : {-3/2}