Question

Resolva a equação N!^2 + N!=6

Answer 1

Bom dia

N!² + N! = 6 

x = N!

x² + x - 6 = 0

delta
d² = 1 + 24 = 25
d = 5

x1 = (-1 + 5)/2 = 4/2 = 2

N! = 2,

N = 2