Question

(-x) . (x-43) = 0

Answer 1

\(\Rightarrow\left[{}\begin{matrix}-x=0\\x-43=0\end{matrix}\right.\)\(\Rightarrow\left[{}\begin{matrix}x=0\\x=43\end{matrix}\right.\)

Answer 2

\(\Leftrightarrow\left[{}\begin{matrix}x=0\\x=43\end{matrix}\right.\)