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 ...

These can be tough, but use this method to minimise losing marks. The trick with this one is to always double check your answer by multiplying out the brackets and comparing your answer with the ...

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 ...