University of South Carolina High School Math Contest/1993 Exam/Problem 2
Problem
Suppose the operation is defined by If then
Solution
, so the answer is .
Alternatively, note the resemblence to Simon's Favorite Factoring Trick. so so and .
Suppose the operation is defined by If then
, so the answer is .
Alternatively, note the resemblence to Simon's Favorite Factoring Trick. so so and .
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