P = \(\frac{x^2 - 6x + 9}{9 - x^2} + \frac{4x + 8}{x + 3}\)

Rút gọn P
----- Nội dung ảnh -----
P = \(\frac{x^2 - 6x + 9}{9 - x^2} + \frac{4x + 8}{x + 3}\)