Tìm x, biết :
\(x\left(x-2016\right)+x-2016=0\)
\(\Rightarrow x\left(x-2016\right)+\left(x-2016\right)=0\)
\(\Rightarrow\left(x-2016\right)\left(x+1\right)=0\)
\(\Rightarrow\left[{}\begin{matrix}x-2016=0\\x+1=0\end{matrix}\right.\)
\(\Rightarrow\left[{}\begin{matrix}x=2016\\x=-1\end{matrix}\right.\)
\(x\left(x-2016\right)+x-2016=0\)
\(\Leftrightarrow\left(x+1\right)\left(x-2016\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x+1=0\\x-2016=0\end{matrix}\right.\) \(\Leftrightarrow\left[{}\begin{matrix}x=-1\\x=2016\end{matrix}\right.\)
Vậy x=-1 hoặc x=2016.
\(x\left(x-2016\right)+x-2016=0\)
\(\Leftrightarrow\left(x+1\right)\left(x-2016\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x+1=0\\x-2016=0\end{matrix}\right.\Rightarrow\left[{}\begin{matrix}x=-1\\x=2016\end{matrix}\right.\)
Vậy, ...