Skip to content / Đến nội dung
ThichHocToan.com

MathNet 2003 — Part 01 Question 65

Math Olympiad Vault · MathNet 2003 — Part 01

Question 65

Consider the polynomial $f(x) = 4x^{4} + 6x^{3} + 2x^{2} + 2003x - 2003^{2}$. Prove that:


a) the local extrema of $f'(x)$ are positive;


b) the equation $f(x) = 0$ has exactly two real roots and find them.