This is just the epitome of showing off. In front of these high school students, it's not enough to just look handsome; if you're also really skilled, you'll be incredibly popular. This problem was on the blackboard, and everyone had already tried their best but still couldn't solve it. Honestly, everyone was quite frustrated, and many even swore this was an unsolvable problem.
But then Su Xuan, so openly and confidently, solved the problem in such an astonishing way, just by adding a few lines and using a few formulas.
Actually, in the realm of mathematics, many problems that seem complex are, in truth, quite simple. The saying goes that all transformations follow the same principle. Many seemingly complicated problems often use the simplest formulas; it's just that many people are misled by the appearance and end up confused, leading to very helpless situations.
