It’s a korean high school math problem Can you solve this?

[Lanca1]

View attachment 9200Hello, I,m korean high school student who likes mathematics. So I have made a math mock exam for KSAT, and this is a problem in the exam. It doesn’t need so long calculation but you can feel it a little difficult. (Sorry to my fool English performance. I’m not good at English)

 

[Olinguito]

What do you mean by “highest order coefficient”? Do you mean the leading coefficient or the constant term?

 

[Lanca1]

What do you mean by “highest order coefficient”? Do you mean the leading coefficient or the constant term?

That means f(x) = -x^2 + ...