An animated guide to solving simultaneous equations. Examples are used to show how to get rid of one unknown term to find the other. Use as an introduction or sum up to lessons on simultaneous ...

A mathematician at Carnegie Mellon University has developed an easier way to solve quadratic equations. The mathematician hopes this method will help students avoid memorizing obtuse formulas. His ...

An animated guide to factorising quadratic expressions and equations. Examples are used to show how to find factors that multiply to give the number term and add to give the x coefficient in an ...