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anonymous

  • one year ago

Solve each problem by using the quadratic formula. Write solutions in simplest radical form. 2x2 – 2x – 1 = 0

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  1. anonymous
    • one year ago
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    |dw:1433026832872:dw|

  2. anonymous
    • one year ago
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    @jagr2713 are you there?

  3. pooja195
    • one year ago
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    List abc values

  4. pooja195
    • one year ago
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    Then plug it in \[\huge~x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a } \]

  5. jagr2713
    • one year ago
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    Well @pooja195 is helping you lol sorry was trying to type that equation in the equation box but was having difficulty lol

  6. anonymous
    • one year ago
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    @jagr2713 what do i do next, i kinda got confused!:)

  7. anonymous
    • one year ago
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    @mathmate

  8. anonymous
    • one year ago
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    @welshfella @danial.sheikh

  9. jagr2713
    • one year ago
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    ok orry u still here

  10. anonymous
    • one year ago
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    yes, i had to log back in srry!

  11. anonymous
    • one year ago
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    @jagr2713

  12. jagr2713
    • one year ago
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    In this case, a=2, b=−2 and c=−1. so plug into the equation above

  13. anonymous
    • one year ago
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    okay!

  14. anonymous
    • one year ago
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    what equation?

  15. jagr2713
    • one year ago
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    \[x=\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]

  16. anonymous
    • one year ago
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    option c is correct

  17. anonymous
    • one year ago
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    im so confused!

  18. anonymous
    • one year ago
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    @jagr2713

  19. jagr2713
    • one year ago
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    @danial.sheikh this is your second warning

  20. anonymous
    • one year ago
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    what? i dont understand?

  21. anonymous
    • one year ago
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    im in between a and c?

  22. jagr2713
    • one year ago
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    Giving direct answers is against our CoC http://openstudy.com/code-of-conduct

  23. jagr2713
    • one year ago
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    So we have a=2, b=−2 and c=−1. so plug it into the equation

  24. anonymous
    • one year ago
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    sorry i didn't knew about that

  25. jagr2713
    • one year ago
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    Its ok :D Just dont do it again :D

  26. anonymous
    • one year ago
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    \[-b+-\sqrt{b ^{2}-4ac}/2a\] use this next time

  27. anonymous
    • one year ago
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    in this q ur b is -2 , a is 1 and c is -1

  28. anonymous
    • one year ago
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    sorry a is 2

  29. anonymous
    • one year ago
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    okay so c is correct?

  30. anonymous
    • one year ago
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    solve ur self now

  31. anonymous
    • one year ago
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    what what?

  32. anonymous
    • one year ago
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    can you help with more questions?

  33. anonymous
    • one year ago
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    just use the equation above

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