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# A and B are constants such that . Find ​.

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A and B are constants such that $$\frac{4x+5}{x^2+x-2}= \frac{A}{x+2} +\frac{B}{x-1}$$. Find $$\frac{B}{x+1} - \frac{A}{x-2}$$.

Apr 5, 2020