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- 2 x ² + 4 x = 0
x ( - 2x + 4 ) = 0 de aquí igualamos ambos factores a cero
x₁ = 0 primera solución
- 2 x + 4 = 0
- 2 x = - 4
x = - 4 / - 2
x = +2 segunda solución
- 2x² + 4x = 0 factorizas sacas factor comun 2x
2x ( - x + 2) = 0 Tiene 2 soluciones reales
2x = 0
x = 0/2
x = 0
o
- x + 2 = 0
2 = x
Solucion.
(0 , 2)