Respuesta :

Answer:

n = -1

n = 8

Step-by-step explanation:

3n^2=21n+24

0=-3n^2+21n+24

0=-3(n^2-7n-8)

0=-3(n+1)(n-8)

0=n+1

n=-1

0=n-8

n=8

Answer:

N = 8 n N = -1

just substitute the values of n in the equation

GOOD LUCK FOR THE FUTURE! :)