Question

|3×+4|=×-8 kasih tau kak cara mengerjakan nya

Answer 1

Verified answer

-> 3x+4 = x-8
3x-x = -8-4
2x = -12
x = -6
-> 3x+4 = -(x-8)
3x+4 = -x+8
3x+x = 8-4
4x = 4
x = 1
karena tdk memenuhi maka hp = kosong
Hp : { }

Answer 2

Verified answer

Materi : Persamaan Nilai Mutlak

Pembahasan :
|3x + 4| = x - 8
(3x + 4)² = (x - 8)²
(3x + 4)² - (x - 8)² = 0
(3x + 4 + x - 8)(3x + 4 - x + 8) = 0
(4x - 4)(2x + 12) = 0
x = 1 ———» Tidak memenuhi
x = -6 ———» Tidak memenuhi

Hp : { }