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Chapter 285: Have All the Students Pay Attention to That Video Host

Professor Xie slapped his thigh in astonishment and exclaimed, "My God, who has thought of proving it this way in the past eight hundred years? This is a genius! Oh no, he must be at least at the level of a mathematician!"

Xie Ran silently watched the pale, clean hands in the video, feeling a bit skeptical.

The hands of a mathematician?

Which mathematician isn't an elderly person with white hair? With such young hands, free of any wrinkles?

Professor Xie watched the video and wielded an old-fashioned fountain pen, writing along on a piece of scratch paper, murmuring excitedly, "So it is, it turns out to be this way..."

"A godlike figure, to think of proving it this way? Let's set A equals B..."

The grandson felt his grandfather might be going insane, he wouldn't respond to any calling.