Tao Feifei felt a bit embarrassed, having wrongly accused Liu Chen earlier. He had been listening to the class seriously all along, just in his own way, by looking at her.
The teacher felt his authority was greatly challenged, and said to Liu Chen, "Alright, if you're so great, come solve this problem for me to see!"
The teacher looked at Liu Chen with dissatisfaction. Making a teacher lose face in class was a serious issue.
When Tao Feifei saw the question, her expression immediately changed. The problem was too difficult, a complex mix of hyperbolas, parabolas, equilateral triangles, and circles. Without a solid foundation, no one could solve it; it was an advanced problem.
As a freshman, this problem was much tougher than the last question on the college entrance exam.
Tao Feifei didn't even dare claim she could solve it, at most she could understand a bit of the approach.
She looked at Liu Chen and whispered, "Can you understand this?"
