Correct Answer: Option D

Explanation

a{\(\frac{x + 1}{x - 2} - \frac{x - 1}{x + 2}\)} = a{\(\frac{(x + 1)(x + 2)- (x - 1)(x - 2)}{(x - 2)(x + 2)}\)}

= 6

\(\frac{6x}{x^2 - 4}\) = 6x

a = x² - 4

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