Difference between revisions of "2013 USAJMO Problems/Problem 1"

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==Solution==
 
==Solution==
  
Consider the equation <math>\bmod 9</math>.
+
Consider the equation modulo <math>9</math>.

Revision as of 19:30, 11 May 2013

Problem

Are there integers $a$ and $b$ such that $a^5b+3$ and $ab^5+3$ are both perfect cubes of integers?

Solution

Consider the equation modulo $9$.