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x(x+4) = 0
x = 0 x+4 = 0
x = - 4
CS = (-4; 0)
x² + 4x = 0 Factorizas sacas factor común x
x(x + 4) = 0 Tiene como solución dos raices reales diferentes
x = 0
o
x + 4 = 0
x = - 4
Solución.
(0 , - 4)