Babylonians, in particular, would solve simultaneous equations to find the roots of a quadratic. Egyptians, Grecians, Indians, and Chinese peoples used graphical methods to solve the equations.

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

A quadratic close quadraticDescribing an expression of the form 𝒂𝒙² + 𝒃𝒙 + 𝒄 where 𝒂, 𝒃 and 𝒄 are real numbers. 𝒚 = 𝒂𝒙² + 𝒃𝒙 + 𝒄 is a quadratic equation ...