Respuesta :

Answer:

x = - 8, x = 8

Step-by-step explanation:

Given

2x² = 128 ( divide both sides by 2 )

x² = 64 ( take the square root of both sides )

x = ± [tex]\sqrt{64}[/tex] = ± 8

That is x = - 8, x = 8

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Answer:

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