Question

cho hàm số y= f (x) = 3 x \(^2\) - 4 x + 1. Tính f (-1); ( \(\dfrac{1}{2}\))

Answer 1

f(-1)=3.1+4.1+1=8

f(\(\dfrac{1}{2}\))=3.\(\dfrac{1}{4}\)-2+1=-1/4