ĐKXĐ: x<>1
\(\dfrac{x-1}{2}=\dfrac{-8}{1-x}\)
=>\(\dfrac{x-1}{2}=\dfrac{8}{x-1}\)
=>\(\left(x-1\right)^2=2\cdot8=16\)
=>\(\left[{}\begin{matrix}x-1=4\\x-1=-4\end{matrix}\right.\)
=>\(\left[{}\begin{matrix}x=5\left(nhận\right)\\x=-3\left(nhận\right)\end{matrix}\right.\)