En resumen

X² - 10x - 119 = 0 (x - 17) (x + 7) = 0 X - 17 = 0 = > x = 17 X + 7 = 0 = > x = - 7.

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Rachele1
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X² - 10x - 119 = 0

(x - 17) (x + 7) = 0

X - 17 = 0 = > x = 17

X + 7 = 0 = > x = - 7.