Problem:
Let x1β<x2β<x3β be the three real roots of equation 2014βx3β4029x2+2=0. Find x2β(x1β+x3β).
Solution:
Let y=2014β. Then the equation becomes 0=yx3β(2y2+1)x2+2=β2x2y2+x3yβ(x2β2), a quadratic equation in y. The quadratic formula gives solutions y=x1β or y=2xββx1β. In the first case x=y1β=2014β1β. In the second case x2β22014βxβ2=0 which has solutions x=2014βΒ±2016β. Thus x1β=2014ββ2016β,x2β=2014β1β, and x3β=2014β+2016β.
Finally, the requested computation is x2β(x1β+x3β)=2β.