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2x² + 5 + 2 = 0
2x² + 7 = 0
2x² = -7
x² = -7/2
x = √ -7/2
x = √(7/2)(-1) Aplicas propiedad √a* b = √a * √b
x =√7/2 * √-1 Pero √-1 = i
x = √7/2 i Tiene dos soluciones imaginarias
x = ±√7/2 i
Solucion.
(- √7/2 i , √7/2 i)