FauxFlawed
FauxFlawed
04-07-2016
Mathematics
contestada
N Squared - N = 90
N =?
Respuesta :
texaschic101
texaschic101
04-07-2016
n^2 - n = 90
n^2 - n - 90 = 0
(n - 10)(n + 9) = 0
n - 10 = 0
n = 10
n + 9 = 0
n = -9
answer is : n = 10 and n = -9
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