|4×-1|=3 tolong bantu aku yah,,pliss tolong caranya lengkap

Question

Matematika Diposting : 2017-07-17 Diupdate : 2022-05-25 jiee3

Pertanyaan

|4×-1|=3

tolong bantu aku yah,,pliss tolong caranya lengkap

Answer 1

|4x - 1| = 3

4x - 1 = 3.
4x = 4
x = 1

4x - 1 = -3
4x = -2
x = -1/2

HP = {-1/2 , 1}

Answer 2

Mapel : Matematika
Kelas : X SMA
Bab : Mutlak

Pembahasan :
|4x - 1| = 3
(4x - 1)² = 3²
(4x - 1)² - 3² = 0
(4x + 2)(4x - 4) = 0
x = -1/2
x = 1