Tuesday, June 28, 2005
Problem# 9
OK! Now some algebra.
The real set {a, b, c} is such that the equation
has three distinct real roots and
The real set {a, b, c} is such that the equation
x3 + ax2 + bx + c = 0
has three distinct real roots and
(x2 + x + 2005)3 + a(x2 + x + 2005)2 + b(x2 + x + 2005) + c > 0for all real values of x. Show that, for the same set {a, b, c},
(2005)3 + a(2005)2 + b(2005) + c > 1/64