Question

3x^2-2x(x+1)=0 TÌM x

Answer 1

\(\Leftrightarrow3x^2-2x^2-2x=0\\ \Leftrightarrow x^2-2x=0\\ \Leftrightarrow x\left(x-2\right)=0\\ \Leftrightarrow\left[{}\begin{matrix}x=0\\x=2\end{matrix}\right.\)

Answer 2

x=0

x=2

 

Answer 3

\(\Leftrightarrow3x^2-2x^2-2x=0\)

hay x=0