Respuesta :

Answer:

[tex]\dfrac{3x^2-9x}{x^2-5^2}[/tex]

Step-by-step explanation:

             [tex]\dfrac{x-3}{x+5} \cdot \dfrac{3x}{x-5} = \dfrac{(x-3)\cdot 3x}{(x+5)(x-5)} = \dfrac{3x^2-9x}{x^2-5^2}[/tex]