Respuesta:
x = 25
Explicación paso a paso:
x² + 5x -18 = 482
x² + 5x - 18 - 482 = 0
x² + 5x - 500 = 0
(x + 20)(x - 25) = 0
x + 20 = 0
x = -20 no sirve
x - 25 = 0
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Respuesta:
x = 25
Explicación paso a paso:
x² + 5x -18 = 482
x² + 5x - 18 - 482 = 0
x² + 5x - 500 = 0
(x + 20)(x - 25) = 0
x + 20 = 0
x = -20 no sirve
x - 25 = 0
x = 25