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MATH / There are numbers A and B for which (A)/(x−1)+(B)/(x+1)=(x+2)/(x²−1)for every number x≠±1. Find A−B. · Discussion

Discussing There are numbers A and B for which (A)/(x−1)+(B)/(x+1)=(x+2)/(x²−1)for every number x≠±1. Find A−B. · MATH

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