MathDB
Binomial Expansion

Source:

January 5, 2007
AIMEnumber theoryrelatively prime2000 AIME

Problem Statement

In the expansion of (ax+b)2000,(ax+b)^{2000}, where aa and bb are relatively prime positive integers, the coefficients of x2x^{2} and x3x^{3} are equal. Find a+b.a+b.