It is common in both Mathematics and Additional Mathematics to find the roots of a quadratic equation. In Mathematics, students are taught to use the Quadratic Formula. In Additional Mathematics, the Quadratic Formula is provided in Examination.
However, using a calculator is a simpler, faster and more reliable way to find the roots of a Quadratic Equation.
The instructions for using calculator to find the roots of a quadratic equation is available for download. Do take note that the instruction is specifically for Casio fx-96 SG PLUS, which is a common calculator model used by GCE ‘O’ Level candidates. For candidates using other models of scientific calculators, please refer to the manual of the calculator or consult other reliable sources.
Download the notes: