The quadratic formula can be used to solve quadratic ... To calculate the decimal answers, work out each answer in turn on a calculator. \(x = \frac{(-6) \pm \sqrt{84}}{2}\) The first solution ...

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 ...