Respuesta :

riyanandola
your  answer is x = 3
sqdancefan
For a quadratic of the form
  ax² +bx +c
the axis of symmetry is
  x = -b/(2a)

You have
  a = -2, b = 4
so
  x = -b/(2a) = -4/(-2*2)
  x = 1

The appropriate choice is
  b. x= 1

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