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x(3x) = 3
3x² = 3
x² = 3/3
x² = 1 Tiene como solución dos raices reales
x = + / - √1
x = √1
x = 1 Porque 1 * 1 = 1
o
x = - √1
x = - 1 Porque (- 1)(- 1) = 1
Solución.
(1 , - 1)