Question

Giải pt sau

Answer 1

Ta có: \(\sqrt{3x^2-2x+1}=x+1\)

\(\Leftrightarrow3x^2-2x+1=x^2+2x+1\)

\(\Leftrightarrow2x^2-4x=0\)

\(\Leftrightarrow2x\left(x-2\right)=0\)

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