Sequence from the product of 2 arithmetic sequences. Created by Sal Khan.
Watch the next lesson: https://www.khanacademy.org/math/math-for-fun-and-glory/aime/2003-aime/v/sum-of-polynomial-roots-proof?utm_source=YT&utm_medium=Desc&utm_campaign=mathforfunandglory
Missed the previous lesson? https://www.khanacademy.org/math/math-for-fun-and-glory/aime/2003-aime/v/2003-aime-ii-problem-7?utm_source=YT&utm_medium=Desc&utm_campaign=mathforfunandglory
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