Here are some examples of quadratic equations in this form: \(2x^2 - 2x - 3 = 0\). \(a = 2\), \(b = -2\) and \(c = -3\) \(2x(x + 3) = 0\). \(a = 2\), \(b = 6\) and ...

Sometimes we have quadratic equations of the form \({x^2}\) - a, in other words there is no term in \({x}\). Factorising these expressions is very straightforward if ...