Azaria2118
Azaria2118
20-10-2016
Mathematics
contestada
"x^2" plus four x -forty five equals zero
Respuesta :
virgotrash
virgotrash
20-10-2016
x^2 + 4x - 45 = 0
(x + 9)(x - 5) = 0
x + 9 = 0 x - 5 = 0
x = -9 x = 5
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