Question

a+2/a (a+3)-a-2/a (a-3)

Answer 1

$= a - a + \frac{2(a - 3)}{(a + 3)(a - 3)} - \frac{2(a + 3)}{(a + 3)(a - 3)} = \frac{2a - 6 - 2a - 6}{ {a}^{2} - 9 } = \frac{12}{9 - {a}^{2} }$