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2x²- x/2 - 2x² + x = 0
2x²- x/2 - 2x² + x = 0
-x/2 + x = 0
x/2 = 0
⇒ x = 0
b. x² - 5x + 4
--------------- = 0
x² + 2x + 1
(x-4) (x-1)
---------------- = 0
(x+1)²
Y TE QUEDARIAN 3 OPCIONES DE RESPUESTA
⇒ x=4
⇒ x=1
⇒ x=-1