Respuesta :

DzeKMaN

Answer:

(x+(-x))²=0

Step-by-step explanation:

4 - a

-4 - b

1 - c

D = b²-4ac

D = (-4)² - 4×4×1

D = 16-16=0 => only one root

x= -b/2a

x= 4/2×4

x= 4/8 = 1/2 = 0.5

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