Everyone learns (and some readers maybe still remember) the quadratic formula. It’s a pillar of algebra and allows you to solve equations like Ax 2 +Bx+C=0. But just because you’ve used it doesn’t ...

The quadratic formula for a quadratic equation in the form of \(ax^2 + bx + c = 0\) is: \(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\). The first solution is \(\frac{(-6 ...

Quadratic equations Solving simple quadratic equations Solving quadratics by factorising when a ≠ 1 - Higher Solving by completing the square - Higher Solving by quadratic formula - Higher Here are ...

Danica McKellar really loves math. While she’s best known for playing Winnie on The Wonder Years, off-screen, McKellar’s reputation as a New York Times best selling author advocating for the ...

In a boon to algebra students everywhere, a professor at Carnegie Mellon University has devised a simpler and more efficient way to solve problems involving the quadratic equation. The new method was ...

The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...

Using the group consisting of the eight Möbius transformations x, –x, 1/x, –1/x, (x – 1)/(x + 1), (x + 1)/(1 – x), (x + 1)/(x – 1), and (1 – x)/(x + 1), we present an enumerative proof of the ...