Question

Giải phương trình

x(x-2017)-x+2017=0

Giúp Mik vs ạ

Answer 1

\(\Leftrightarrow x\left(x-2017\right)-\left(x-2017\right)=0\)

\(\Leftrightarrow\left(x-1\right)\left(x-2017\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x-1=0\\x-2017=0\end{cases}\Leftrightarrow\orbr{\begin{cases}x=1\\x=2017\end{cases}}}\)

Vậy.....

Answer 2

\(x\left(x-2017\right)-x+2017=0\)

\(\Leftrightarrow x\left(x-2017\right)-\left(x-2017\right)=0\)

\(\Leftrightarrow\left(x-1\right)\left(x-2017\right)=0\)

\(\Leftrightarrow\orbr{\begin{cases}x-1=0\\x-2017=0\end{cases}}\Leftrightarrow\orbr{\begin{cases}x=1\\x=2017\end{cases}}\)