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10x² + 20x - 240 = 0 Simplificas un cero
x² + 2x - 24 = 0 Factorizas trinomio de la forma x² + bx + c
(x + 6)(x - 4) = 0 Tiene como solución dos raices reales
x + 6 = 0
x = - 6
o
x - 2 = 0
x = 4
Solución.
(- 6 , 4)
X² + 2X - 24 = 0; Donde a = 1; b = 2; c = -24
X1 =[-2 + 10]/2 = 4
X2 = [-2 - 10]/2 = -6
Soluciones X = 4; X = -6