tentukan nilai x , |2x+5|=2

menyelesaikan nilai mutlak

|2x + 5| = 2
     -2 = 2x + 5      = 2
-2 - 5 = 2x + 5 - 5 = 2 - 5
     -7 = 2x             = -3
-7 / 2 = 2x / 2        = -3 / 2
  -7/2 = x               = -3/2

jadi hp = {-7/2 , -3/2}

|2x + 5| = 2
2x + 5 = 2
2x = 2 - 5
2x = -3
x = -3/2

2x + 5 = -2
2x = -2 - 5
2x = -7
x = -7/2

HP = { -3/2, -7/2}