(5per x +3) + (7per x -3)

[tex] \frac{5}{(x + 3)} + \frac{7}{(x - 3)} \\ = \frac{5(x - 3) + 7(x + 3)}{(x + 3)(x - 3)} \\ = \frac{5x - 15 + 7x + 21}{x ^{2} - 3x + 3x - 9} \\ = \frac{5x + 7x - 15 + 21}{x ^{2} - 9} \\ = \frac{12x + 6}{x ^{2} - 9 } [/tex]

Maaf Kalau Salah