sammy0619
sammy0619
24-04-2017
Mathematics
contestada
2
Solve x +10x= 39 by completing the square.
Respuesta :
Аноним
Аноним
27-04-2017
(x + 5)^2 - 25 = 39
(x+5)^2 = 64
(x + 5) =+/- sqrt64 = +/- 8
x = 3, -13
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