Question

(3^X -9).(8-2.X) = 0

Answer 1

\(\Rightarrow\left\{{}\begin{matrix}3^x-9=0\\8-2x=0\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}3^x=9=3^2\\2x=8\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=2\\x=4\end{matrix}\right.\)

Answer 2

\(\Leftrightarrow\left[{}\begin{matrix}x=4\\x=2\end{matrix}\right.\)