Chapter 54 Tomorrow...Are you busy?
"Ahem..."
Lin Dejiang forcibly continued Ye Fan's explanation. "Look at Ye Fan's first step, given the function f(x) = x³ + (1-a)x² - a(a+2)x + b..."
Only then did the boys shift their attention to the blackboard.
Seeing this, Ning Xi patted her chest and breathed a sigh of relief. She looked at Ye Fan curiously and asked, "Why didn't you... explain your problem-solving process properly?"
Usually, when Ye Fan explained problems to her, he was extremely serious and meticulous.
If she didn't understand the first time, he would explain it again, using a different approach. He was very patient.
But judging from Ye Fan's attitude just now, Ning Xi could only see two words written on his face:
Perfunctory!
Yes, it was perfunctory!!!
Ning Xi couldn't understand.
Sharing his problem-solving process with everyone was clearly a good thing.