Respuestas

2012-07-18T02:56:50+02:00

 

x(x + 6) = 0

3x2 - 192 = 0

3(x - 64) =0

 

36x2 - 60x + 25 = 0

(6x - 5)(6x - 5)= 0

(6x - 5)2 = 0