|2x-5|=3 cara menyelesaikan persamaan nilai mutlak

|2x - 5| = 3
→ (2x-5)² = 3²
→ (2x-5)² - 3² = 0
→ (2x-5+3) (2x-5-3) = 0
→ ( 2x-2) (2x-8) = 0
Maka
2x - 2 = 0 atau 2x - 8 = 0
2x = 2 ←→ 2x = 8
x = 2/2 ←→ x = 8/2
x = 1 ←→ x = 4
HP { 1 , 4}

Semoga membantu :)

|2x-5|=3

(i)
2x - 5 = 3
2x = 3 + 5
2x = 8
  x = 8/2
  x = 4

(ii)
2x - 5 = -3
2x = -3 + 5
2x = 2
  x = 2/2
  x = 1

Jadi HP : {1 , 4}