anonymous
  • anonymous
Solve x2 + 4x + 8 = 0
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
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taramgrant0543664
  • taramgrant0543664
So you need to use the quadratic formula for this one x^2 + 4x + 8 = 0 a = 1 b = 4 c = 8 x = (-b +/- sqrt(b^2 - 4ac)) / 2a x = (-4 +/- sqrt(16 - 4*1*8)) / 2
anonymous
  • anonymous
okay so what next?

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taramgrant0543664
  • taramgrant0543664
You solve for x
taramgrant0543664
  • taramgrant0543664
So x = (-4 +/- sqrt(16 - 4*1*8)) / 2 x=(-4+/- sqrt(-16))/2 x=(-4+/- (-4))/2
taramgrant0543664
  • taramgrant0543664
x=? Do you know how to finish the last little part? You just need to divide by 2
anonymous
  • anonymous
So would it be a?
taramgrant0543664
  • taramgrant0543664
Yes a would be correct
anonymous
  • anonymous
Thank you!!
taramgrant0543664
  • taramgrant0543664
No problem! Happy to help!

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