Question

( x -6 ) ^2 = 9

Answer 1

\(\left(x-6\right)^2=9\)

\(\Rightarrow\left[{}\begin{matrix}x-6=3\\x-6=-3\end{matrix}\right.\)

\(\Rightarrow\left[{}\begin{matrix}x=9\\x=3\end{matrix}\right.\)

Answer 2

`(x-6)^2 = 9`

`(x-6)^2 =3^2`

`=>` \(\left[{}\begin{matrix}x-6=3\\x-6=-3\end{matrix}\right.\)

`=>` \(\left[{}\begin{matrix}x=3+6\\x=-6+3\end{matrix}\right.\)

`=>` \(\left[{}\begin{matrix}x=9\\x=3\end{matrix}\right.\)

Vậy....

`#LeMichael`