Question

(x-1)^2=(-5)^2

Answer 1

`(x-1)^2=(-5)^2`

TH1:`x-1=-5`

`=> x=-5+1`

`=> x=-4`

TH2:`x-1=5`

`=> x=5+1`

`=> x=6`

Answer 2

Đức(67)

Answer 3

x=-4 hoặc x=6

Answer 4

(x-1)^2=(-5)^2

(x-1)^2=25

x-1=√25

x-1=5

x=5+1

x=6

ok x =6

Answer 5

sao x=-4 đc -5.-5=25 mà

âm nhân âm ra dương mà