Hello, Optiminimal!

You first equation has typos . . . (You had me worried!)

. . but your later equations are correct.

We have the general quadratic: .Ax² + Bxy + Cy² + Dx + Ey + F .= .0

In terms ofy: .Cy² + (Bx + E)y + (Ax² + Dx + F) .= .0

. . . . . . . . . . . . . . . . . . . . . . . . . . . . _________________________

. . . . . . . . . . . . . . . . . . . -(Bx + E) ± √(Bx + E)² - 4C(Ax² + Dx + F)

Quadratic Formula: . y .= . ----------------------------------------------------

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2C

I haven't solved it yet.

Maybe others are more willing to help . . . now that it's more easily read.