{"type":"rich","version":"1.0","title":"Finding Roots of a Cubic Equation using Cardano's and Vietè's Formulas","html":"<iframe src=\"https://www.desmos.com/calculator/fnipxr3u8c?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}