anonymous
  • anonymous
Solve the following quadratic equation by using a method below: 0 = x^2 + 8x + 4 Methods: Completing the Square Factoring Quadratic Formula Graphing
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Quadratic Formula
anonymous
  • anonymous
yes
anonymous
  • anonymous
|dw:1354817111266:dw|

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anonymous
  • anonymous
|dw:1354817224827:dw|
anonymous
  • anonymous
|dw:1354817354330:dw|
anonymous
  • anonymous
is that your answer
Frostbite
  • Frostbite
that is your answer.
Frostbite
  • Frostbite
\[x=2(\sqrt{3}-2)\] \[x=-2(\sqrt{3}+2)\]
anonymous
  • anonymous
Wait but can't you also do it by completing the square??
anonymous
  • anonymous
im so confused. are you suposed to get the same answer no w=matter what method you use???
Frostbite
  • Frostbite
Yes you are :)
Frostbite
  • Frostbite
Unless we use aproximation methods.
anonymous
  • anonymous
Well is you answer right? x=2(3√−2) x=−2(3√+2) I completed the square and got -4+- root 12?? How would you simplify that???
Frostbite
  • Frostbite
What I wrote is the quadratic formula you had hardships rewriting... mearly a rewriteing, nothing else... This "Completing the square"-method I'm not familiar with... unless we have another name for it in my native language.
anonymous
  • anonymous
thanks!
Frostbite
  • Frostbite
like -4+- root 12 is the same as: \[\pm 2 \sqrt{3}-4\] (sorry I constrantly right wrong)
anonymous
  • anonymous
Yes..but couldn't the -4 go in front?? thats not the same as your answer.. which is right??!??!?!!!!
Frostbite
  • Frostbite
The answers is the same abbie no need to worry. \[2(\sqrt{3}-2)=2\sqrt{3}-4\] Just 2 multiplied into the parentheses.
anonymous
  • anonymous
thanks!!

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