\(\frac{3x}{8}=\frac{6}{x}\)
a) \(3x\cdot x=8\cdot6\)
\(3x^2=48\)
\(x^2=\frac{48}{3}=16\)
\(x=\orbr{\begin{cases}4\\-4\end{cases}}\)
b) \(\frac{x-2}{2}=\frac{-8}{x-2}\)
\(\left(x-2\right) ^2=-16\)
Vì \(\left(x-2\right)^2\ge0\)
=> X ko có giá trị tương ứng