Solving Quadratic Equations

This example demonstrates how to use the Solve command in GeoGebra to find the roots of a quadratic equation and visualize the solutions graphically. The core mathematical concepts involved include the solutions of quadratic equations, the relationship between the function graph and the roots of the equation. The key construction steps involve using the Solve command to solve the quadratic equation and presenting the solutions as a geometric object l1. It is suitable for high school mathematics education, helping students understand the correspondence between the solutions of a quadratic equation and the intersection points of the function graph.