{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/7f3ba3aeb4964d8d90b1d6fbd82f2d5a\" frameborder=\"0\" width=\"960\" height=\"720\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":720,"width":960,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":720,"thumbnail_width":960,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/7f3ba3aeb4964d8d90b1d6fbd82f2d5a-00001.jpg","duration":80,"title":"SAT official #1_S3_Q2","description":"p:  For i = sqrt(−1) , what is the sum (7 + 3i ) + (−8 + 9i) ? \na:  i −1 + 12 ;\n i −1 − 6 ;\n i 15 + 12 ;\n i  ;"}