Respuesta :

Answer:

36

Step-by-step explanation:

Given

[tex]\frac{x^2-9}{x-7}[/tex] substitute x = 9 into the expression

= [tex]\frac{9^2-9}{9-7}[/tex]

= [tex]\frac{81-9}{2}[/tex]

= [tex]\frac{72}{2}[/tex]

= 36