Quadratic equations fall into an interesting donut hole in education. Students learn them beginning in algebra or pre-algebra classes, but they’re spoonfed examples that work out very easily and ...

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 two solutions to this quadratic equation are 2 – u and 2 + u, or –1 and 5. In other words, this parabola intersects the x -axis when x = –1 and x = 5 . For example, in this parabola: ...

Solve quadratic equations by factorising, using formulae and completing the square. Each method also provides information about the corresponding quadratic graph. Part of Maths Algebra.