lf $\alpha,\ \beta$ are the roots of the equation $\lambda(x^{2}-x)+x +5=0,\ \lambda_{1}$ and $\lambda_2$ are the two values of $\lambda$ for which the roots, $\alpha,\ \beta$ are connected by the relation $\displaystyle \frac{\alpha}{\beta}+\frac{\beta}{\alpha}=\frac{4}{5}$, then the value of $\displaystyle \frac{\lambda_{1}}{\lambda_{2}}+\frac{\lambda_{2}}{\lambda_{1}}=$