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abbie1 Group Title

Solve the following quadratic equation by using a method below: 0 = x^2 + 8x + 4 Methods: Completing the Square Factoring Quadratic Formula Graphing

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  1. Muskan Group Title
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    Quadratic Formula

    • one year ago
  2. Muskan Group Title
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    yes

    • one year ago
  3. Muskan Group Title
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    |dw:1354817111266:dw|

    • one year ago
  4. Muskan Group Title
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    |dw:1354817224827:dw|

    • one year ago
  5. Muskan Group Title
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    |dw:1354817354330:dw|

    • one year ago
  6. Muskan Group Title
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    is that your answer

    • one year ago
  7. Frostbite Group Title
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    that is your answer.

    • one year ago
  8. Frostbite Group Title
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    \[x=2(\sqrt{3}-2)\] \[x=-2(\sqrt{3}+2)\]

    • one year ago
  9. abbie1 Group Title
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    Wait but can't you also do it by completing the square??

    • one year ago
  10. abbie1 Group Title
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    im so confused. are you suposed to get the same answer no w=matter what method you use???

    • one year ago
  11. Frostbite Group Title
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    Yes you are :)

    • one year ago
  12. Frostbite Group Title
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    Unless we use aproximation methods.

    • one year ago
  13. abbie1 Group Title
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    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???

    • one year ago
  14. Frostbite Group Title
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    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.

    • one year ago
  15. abbie1 Group Title
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    thanks!

    • one year ago
  16. Frostbite Group Title
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    like -4+- root 12 is the same as: \[\pm 2 \sqrt{3}-4\] (sorry I constrantly right wrong)

    • one year ago
  17. abbie1 Group Title
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    Yes..but couldn't the -4 go in front?? thats not the same as your answer.. which is right??!??!?!!!!

    • one year ago
  18. Frostbite Group Title
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    The answers is the same abbie no need to worry. \[2(\sqrt{3}-2)=2\sqrt{3}-4\] Just 2 multiplied into the parentheses.

    • one year ago
  19. abbie1 Group Title
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    thanks!!

    • one year ago
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