`\text{~~Holi~~}`
`\sqrt{2x^2-3x-5}=x-1`
`-> 2x^2-3x-5=x^2-2x+1`
`-> 2x^2-3x-5-x^2+2x-1=0`
`-> x^2-x-6=0`
`-> x^2+2x-3x-6=0`
`-> x(x+2)-3(x+2)=0`
`-> (x+2)(x-3)=0`
`->`\(\left[ \begin{array}{l}x+2=0\\x-3=0\end{array} \right.\)
`->`\(\left[ \begin{array}{l}x=-2\\x=3\end{array} \right.\)
`->`\(\left[ \begin{array}{l}x=-2 (\text{không phải là nghiệm})\\x=3\end{array} \right.\)
`-> x=3`
