Question

(2x+10).(y-5)=12

Answer 1

\(\left(x+5\right)\left(y-5\right)=6\)

Trường hợp 1: \(\left\{{}\begin{matrix}x+5=1\\y-5=6\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=-4\\y=11\end{matrix}\right.\)

Trường hợp 2: \(\left\{{}\begin{matrix}x+5=6\\y-5=1\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=1\\y=6\end{matrix}\right.\)

Trường hợp 3: \(\left\{{}\begin{matrix}x+5=2\\y-5=3\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=-3\\y=8\end{matrix}\right.\)

Trường hợp 4: \(\left\{{}\begin{matrix}x+5=3\\y-5=2\end{matrix}\right.\Leftrightarrow\left\{{}\begin{matrix}x=-2\\y=7\end{matrix}\right.\)