Question

\(\dfrac{x-2}{-3}=\dfrac{-27}{x-2}\)

Answer 1

\(\Leftrightarrow\left(x-2\right)^2=81\)

=>x-2=9 hoặc x-2=-9

=>x=11 hoặc x=-7

Answer 2

đk : x khác 2 

\(\Rightarrow\left(x-2\right)^2=81\Leftrightarrow\left[{}\begin{matrix}x-2=9\\x-2=-9\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=11\\x=-7\end{matrix}\right.\left(tm\right)\)