Question

(x - 5)(-2x + 6) = 0

Answer 1

\(\left\{{}\begin{matrix}x-5=0\\-2x+6=0\end{matrix}\right.\)
\(\left\{{}\begin{matrix}x=5\\x=3\end{matrix}\right.\)

Answer 2

\(\Leftrightarrow\left(x-5\right)\left(x-3\right)=0\Leftrightarrow\left[{}\begin{matrix}x=3\\x=5\end{matrix}\right.\)