MathDB

Principal Skinner is thinking of two integers

m

and

n

and bets Superintendent Chalmers that he will not be able to determine these integers with a single piece of information. Chalmers asks Skinner the numerical value of

mn+13m+13n-m^2-n^2

. From the value of this expression alone, he miraculously determines both

m

and

n

. What is the value of the above expression.

Problem Statement