Question
If $\begin{vmatrix} x+1 & x+2 & x+\alpha \\ x+2 & x+3 & x+\beta \\ x+3 & x+4 & x+\gamma \end{vmatrix} = 0$, then $\alpha, \beta, \gamma$ are
If $\begin{vmatrix} x+1 & x+2 & x+\alpha \\ x+2 & x+3 & x+\beta \\ x+3 & x+4 & x+\gamma \end{vmatrix} = 0$, then $\alpha, \beta, \gamma$ are