allygerm allygerm
  • 18-06-2018
  • Mathematics
contestada

what is the value of b^2-4ac for the following equation 2x^2-2x-1=0

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MavericJacob
MavericJacob MavericJacob
  • 19-06-2018
Here a = 2, b = -2, c = -1
b^2-4ac = (-2)^2 - 4(2)(-1)
= 4 +8
= 12
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