jm2bad jm2bad
  • 18-07-2017
  • Mathematics
contestada

which of the follwong numbers must be added to complete the square in the equation below?

x^2+6x-19=23

A.19 B.3 C.-9 D.9

Respuesta :

HowTo77 HowTo77
  • 18-07-2017
9..........................
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