Even though these two problems are just simple transformations of the example questions explained earlier, they're still beyond what you all can fully grasp at this stage.
Of course, if anyone could actually solve them, Xu Changshu would be very excited—your mathematical talent might not reach the level of Qiao Ze's, but it wouldn't be too far off either.
Just like that, half an hour passed amidst the buzz of murmured discussions.
Xu Changshu suddenly put down his paper, stood up, stretched lazily, and then slapped the lectern: "Alright, quiet."
The classroom quickly fell silent.
"Has anyone solved the two problems? Raise your hand if you have."
No one raised their hand.
Xu Changshu smiled and said, "Oh, it looks like you still don't fully understand. Well then, has anyone at least drawn the corresponding graphs? Raise your hand."
Three hands went up.
"Alright, let me see."
