\(\left|x-1\right|-8=-4\)
\(\left|x-1\right|=-4+8\)
\(\left|x-1\right|=4\)
\(x-1=4\) hoặc \(x-1=-4\)
\(x=4+1\) \(x=-4+1\)
\(x=5\) \(x=-3\)
|x-1 | = -4 + 8
| x - 1 | = 4
Co 2 TH :
* |x -1| = -4
x = -4 + 1= -3
* |x -1¦ = 4
x = 4 + 1
x =5
Vay x = -3 or x = 5
Mk nghi bai nay co 2 TH moi dung . Neu mk dung KKKKKK nha nha
I x - 1 I - 8 = - 4
I x - 1 I = - 4 + 8
I x - 1 I = 4
=> x- 1 = 4 hoac x - 1 = - 4
Nếu x - 1 = 4
x = 4 + 1
x = 5
Neu x - 1 = - 4
x = - 4 + 1
x = -3
Vậy x = 5,x = -3
|x-1|-8=-4
|x-1|=-4+8
|x-1|=4
x-1=-4 hoặc x-1=4
x=-4+1 x=4+1
x=-3 x=5