Question 1030349
F(x) equals x^3 - (d + e + g)x^2 + (de + eg + dg)x - deg.


Then F'(x) = 3x^2 - 2(d + e + g)x + de + eg + deg, and F''(x) = 6x - 2(d + e + g). Points of inflection occur when F''(x) = 0 and F changes concavity.