chapter 47 Never forget it!

The classroom, which was still extremely noisy, immediately became much quieter. Under the gaze of everyone, Frank Fang walked up to the podium, picked up the chalk, and began to answer questions. Hu Bo frowned, watching every word Frank Fang wrote on the blackboard. "Damn it, Frank Fang seems to really know how to do it? The formulas he listed at the beginning seem to be correct." "Who can't list a few formulas? I can do it!" "The most difficult part of this problem lies in the proof...