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Dividiendo todo por -2
X^2-64=0
X^2=64
X=√64
X= 8 o -8
-2x² + 128 =
- 2x² = - 128
x² = - 128/- 2
x² = 64
x = +/- √64 Tiene como solución dos raices reales
x = √64
x = 8 Porque 8 * 8 = 64
o
x = - √64
x = - 8 Porque (- 8)(- 8) = 64
Solución.
(8 , - 8)