Answer:
Hola Amigos De Brainly les quiero pedir de su ayuda para resolver esta actividad El tema es ecuaciones cuadráticas y necesito que me ayuden POR FAVOR.
You can see that you're constantly subtracting 8 to get the next number. So, we have





So, as you can see, to get the n-th term we must subtract (n-1) times 8 from the original number.
Its probably a fraction.
You would know the answer if you researched what your question was on google