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jmc

algebra intermediate

Problem

The square of an integer is 182 greater than the integer itself. What is the sum of all integers for which this is true?
Solution
Let our integer be . Then we have that , or . The sum of the roots of this equation is just . Note that we are given that one solution is an integer, and so the other one must be as well since they add to 1.

Note that we can factor as . So the integers that work are 14 and , and their sum is as expected.
Final answer
1