I also hinted that I had a killer solution to the root-finding problem, and promised to show it to you some day. That day has arrived. I first wrote about this problem in 1994.[1,2,3] Those of you ...

If a quadratic equation can be factorised, the factors can be used to find the roots of the equation. The equation factorises to give \((x + 3) (x - 2) = 0 \) so the solutions to the equation \(x^2 + ...