\(\left(x-2\right)\left(3x^2-10x+3\right)=0\)
\(\Leftrightarrow\left(x-2\right)\left(3x^2-9x-x+3\right)=0\)
\(\Leftrightarrow\left(x-2\right)\left(x-3\right)\left(3x-1\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x=2\\x=3\\x=\dfrac{1}{3}\end{matrix}\right.\)