Question

5x(x-3)-x+3=0 help em với ạ

 

 

Answer 1

\(5x\left(x-3\right)-x+3=0\)

\(5x\left(x-3\right)-\left(x-3\right)=0\)

\(\left(5x-1\right)\left(x-3\right)=0\)

⇒\(\left[{}\begin{matrix}5x-1=0\\x-3=0\end{matrix}\right.\)

⇒\(\left[{}\begin{matrix}x=\dfrac{1}{5}\\x=3\end{matrix}\right.\)

Answer 2

\(\left[{}\begin{matrix}5x-1=0\\x-3=0\end{matrix}\right.\Leftrightarrow\left[{}\begin{matrix}x=\dfrac{1}{5}\\x=3\end{matrix}\right.\)