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Tia_Sweetheart17 Group Title

this is a quadratic equation. i know the formula i just need to know how to do it. x^2+2x-24=0

  • 2 years ago
  • 2 years ago

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  1. gandalfwiz Group Title
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    Do you know how to find your A, your B, any your C?

    • 2 years ago
  2. Tia_Sweetheart17 Group Title
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    yeah

    • 2 years ago
  3. gandalfwiz Group Title
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    Wait- just re read the question. You're looking to use the quadratic formula, right?

    • 2 years ago
  4. Tia_Sweetheart17 Group Title
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    yes

    • 2 years ago
  5. gandalfwiz Group Title
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    Okay, good. So your a is 1, your b is 2, and your c is -24 so wherever you see an a in the formula, you put a 1, 2 for the b, and -24 for the c

    • 2 years ago
  6. gandalfwiz Group Title
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    So, the formula starts with (-b)^2. For that b, you'd put in 2. Do the same with the rest of the a's,b's, and c's and then just solve for x

    • 2 years ago
  7. gandalfwiz Group Title
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    Is that good or do you want to do the process together?

    • 2 years ago
  8. Tia_Sweetheart17 Group Title
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    could we do it together to make sure i'm doing it right?

    • 2 years ago
  9. gandalfwiz Group Title
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    sure!

    • 2 years ago
  10. gandalfwiz Group Title
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    Alright, to heck with the stupid equation. I'm drawing it

    • 2 years ago
  11. gandalfwiz Group Title
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    |dw:1331687946988:dw|

    • 2 years ago
  12. gandalfwiz Group Title
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    Okay, so lets do the a's first

    • 2 years ago
  13. gandalfwiz Group Title
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    Since your a is 1, that's really simple because it only ever needs to get multiplied by the 2, and 2*1=1. So for a, you don't need to make any changes

    • 2 years ago
  14. gandalfwiz Group Title
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    Lets to b next. |dw:1331688080301:dw|

    • 2 years ago
  15. gandalfwiz Group Title
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    Sorry about that extra a; I forgot to mention it when we did a but it's the same situation. Because a is 1 and it's being multiplied, it makes no difference

    • 2 years ago
  16. gandalfwiz Group Title
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    Any questions so far?

    • 2 years ago
  17. Tia_Sweetheart17 Group Title
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    no

    • 2 years ago
  18. gandalfwiz Group Title
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    Okay :) Now lets do c.|dw:1331688316770:dw|

    • 2 years ago
  19. gandalfwiz Group Title
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    And all of that is equal to x Now we need to solve for x

    • 2 years ago
  20. gandalfwiz Group Title
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    |dw:1331688455475:dw|

    • 2 years ago
  21. gandalfwiz Group Title
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    |dw:1331688519484:dw|

    • 2 years ago
  22. gandalfwiz Group Title
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    |dw:1331688549330:dw|

    • 2 years ago
  23. gandalfwiz Group Title
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    |dw:1331688578241:dw|

    • 2 years ago
  24. gandalfwiz Group Title
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    |dw:1331688607188:dw|

    • 2 years ago
  25. gandalfwiz Group Title
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    And that's all there is :)

    • 2 years ago
  26. Tia_Sweetheart17 Group Title
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    thank you so much. i think i got it.

    • 2 years ago
  27. gandalfwiz Group Title
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    You're welcome :) medal?

    • 2 years ago
  28. Tia_Sweetheart17 Group Title
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    sure

    • 2 years ago
  29. gandalfwiz Group Title
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    :)

    • 2 years ago
  30. Tia_Sweetheart17 Group Title
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    could you help me again?

    • 2 years ago
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