Question

(x-1)mũ2=25

Answer 1

`(x-1)^2=25`

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

`@TH1`

`x-1=5`

`=>x=5+1`

`=>x=6`

`@TH2`

`x-1=-5`

`=>x=-5+1`

`=>x=-4`

Answer 2

\(\left(x-1\right)^2=25\)

\(\Rightarrow\left(x-1\right)^2=5^2\)

\(\Rightarrow\left[{}\begin{matrix}x-1=5\\x-1=-5\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=6\\x=-4\end{matrix}\right.\)

Vậy: ...