Before we look at the new solution, let’s talk about why you want to solve quadratic equations ... more crop to grow to cover pay tax payments without eating in to the crop you needed to ...

Look at the National 4 factorising section before continuing. When a question asks you to 'solve' a quadratic equation, this means that you are to find the roots of the quadratic. In other words ...

The quadratic formula can be used to solve quadratic equations that will not factorise. You will need to learn this formula, as well as understanding how to use it. Key fact The quadratic formula ...