If a quadratic equation can be factorised, the factors can be used to find the roots of the equation. The equation factorises to give \((x + 3) (x - 2) = 0 \) so the solutions to the equation \(x ...

Next, we need to find the roots of the equation. We can use the 'discriminant' to show how many roots there are, if any: \({b^2} - 4ac\textgreater0\) means there are two roots \({b^2} ...