I know that [math]\gamma + \delta =-\frac{5}{6}[/math] and [math]\alpha+\beta =0[/math]
so then i subbed that into
\[math]alpha\beta +\alpha \gamma +\alpha \delta +\beta \gamma +\beta \delta +\gamma \delta = -4[/math]
and got that
[math]\alpha \beta + \gamma \delta =-4[/math]
When I sub that all in and factor i get:
[math](\alpha +\beta )(\gamma + \delta ) = 0[/math]
which doesn't really tell me anything