Respuesta:
[tex] \frac{(x - 3)(x + 3)}{(x - 3)(x + 1)} \frac{x + 4}{x + 3} \frac{x}{x + 4} [/tex]
[tex] \frac{x}{x + 1} [/tex]
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Respuesta:
[tex] \frac{(x - 3)(x + 3)}{(x - 3)(x + 1)} \frac{x + 4}{x + 3} \frac{x}{x + 4} [/tex]
[tex] \frac{x}{x + 1} [/tex]