Answer:
N = 8 n N = -1
just substitute the values of n in the equation
GOOD LUCK FOR THE FUTURE! :)
n = -1
n = 8
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
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