{"type":"rich","version":"1.0","title":"y=x³+3x²+3x+3,     y=2  (Horiz tang)","html":"<iframe src=\"https://www.desmos.com/calculator/lye8nzzwlv?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}