The quadratic formula for a quadratic equation in the form of \(ax^2 + bx + c = 0\) is \(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\). The first solution is \(x = \frac ...

Some quadratics have solutions that are not whole numbers, these would be incredibly difficult to factorise so the quadratic formula is used. Key fact When solving quadratics in exams it is common ...

In high school, you may have encountered the quadratic formula, which gives solutions to equations where the unknown variable is squared. Maybe your high school teacher didn’t want to deal with ...