Generalization of Quadratic Equation
You have all seen the derivation of the quadratic formula solution to A x ^ 2 + B x + C = 0. A x y + B x + C y = D is the two variable generalization of the quadratic equation. Divide through by A x ^ 2 + (B/A) x + (C/A) = 0 x ^ 2 + (B/A) x = - (C/A) x y + (B/A) x + (C/A) y = (D/A) Complete the... Sign in to see full entry.