A mathematician at Carnegie Mellon University has developed an easier way to solve quadratic equations. Here's the secret.

Learn about and revise quadratic equations by factorising, completing the square and using the quadratic formula with GCSE Bitesize OCR Maths.

Revise solving quadratic equations for your maths GCSE foundation and higher exams with Bitesize interactive practice quizzes covering feedback and common errors.

Quadratic equations are basic to algebra and are the math behind parabolas, projectiles, satellite dishes and the golden ratio.

The quadratic formula learned by generations of math students is difficult to remember, but it can be used to solve quadratic equations where y = 0.

Many former algebra students have painful memories of struggling to memorize the quadratic formula. A new way to derive it, overlooked for 4,000 years, is so simple it eliminates the need.

These ancient Mesopotamians solved quadratic equations by literally completing a square. Here is a typical teaching problem of the time: "Add 20 of my length to the area of my square, [to get] 21.

Learn why the quadratic formula works and why quadratics are easier to solve than cubics.

The presence of hyperglycemia results in elevated REE in obese persons with type 2 diabetes, and its effect on the validity of these equations is unknown.

Check CBSE Class 10 Maths Case Study Questions for Chapter 4 Quadratic Equations. All these questions are published by the CBSE board.