Respuesta :
x^2 + 8 is equal to in this case 8^2 + 8, which is 64 + 8, which is 72. x -5 in this case is equal to 8-3, which is five. so your sander would be 72/5.
I assume you mean (x^2+8)/(x-5)?
If so, we have:
(8^2+8)/(8-5)
(64+8)/3
72/3
24
So the value is 24 when x=8
Hope this helped!