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anonymous

  • one year ago

Help please?? Solve 2x2 + 3x + 6 = 0. Round solutions to the nearest hundredth. (4 points) x ≈ -2.64 and x ≈ 1.14 x ≈ -1.14 and x ≈ 2.64 No real solutions x ≈ -1.11 and x ≈ -4.89

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  1. sebaxtiangb
    • one year ago
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    the 2x2 is suppose to be 2x^2? or is it a multiplication?

  2. anonymous
    • one year ago
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    yes it is supposed to be 2x^2

  3. sebaxtiangb
    • one year ago
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    first solve the exponent first

  4. sebaxtiangb
    • one year ago
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    that will be 4x

  5. sebaxtiangb
    • one year ago
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    then add the 4x and the 3x

  6. anonymous
    • one year ago
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    7x

  7. sebaxtiangb
    • one year ago
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    yes

  8. LynFran
    • one year ago
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    that will not be 4x??

  9. sebaxtiangb
    • one year ago
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    then the equation is 7x + 3 = 0

  10. sebaxtiangb
    • one year ago
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    no bc u multiply \[2^2\]

  11. sebaxtiangb
    • one year ago
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    which is 4

  12. sebaxtiangb
    • one year ago
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    then add the variables which is 3x and 4x which is 7x and the equation is then 7x + 3 = 0

  13. sebaxtiangb
    • one year ago
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    then u can solve

  14. anonymous
    • one year ago
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    still confused and idk why

  15. sebaxtiangb
    • one year ago
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    what happen?

  16. anonymous
    • one year ago
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    well i added the variables and got the 7x+3=0

  17. anonymous
    • one year ago
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    but not sure what comes after

  18. sebaxtiangb
    • one year ago
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    subtract 3 from both sides

  19. anonymous
    • one year ago
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    7x=-3

  20. sebaxtiangb
    • one year ago
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    |dw:1438268045761:dw|

  21. sebaxtiangb
    • one year ago
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    divide -3 by 7 and then you will your answer

  22. sebaxtiangb
    • one year ago
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    and then you have to rounded it

  23. anonymous
    • one year ago
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    okay

  24. anonymous
    • one year ago
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    its -0.42, but thats not a selective answer choice

  25. anonymous
    • one year ago
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    @sebaxtiangb

  26. LynFran
    • one year ago
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    the graph of such equation look like this i hope form it u will be able to get ur answer |dw:1438275951759:dw|this means there are imaginary solutions in other words.... and @sebaxtiangb 2x^2 is not equal to 4x \[(2x)*(2x)=4x ^{2}\]

  27. anonymous
    • one year ago
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    okau thank you

  28. anonymous
    • one year ago
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    what would be the answer tho? bc all these answers are just far off from the selective choice ones

  29. LynFran
    • one year ago
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    if i say imaginary then i mean?

  30. anonymous
    • one year ago
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    doesnt eexist

  31. LynFran
    • one year ago
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    they are imaginary solution ...so they are not real..

  32. anonymous
    • one year ago
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    okay

  33. anonymous
    • one year ago
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    nvm still lost

  34. triciaal
    • one year ago
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    the quadratic equation is in the form ax^2 + bx + c = 0 to solve |dw:1438269910092:dw| using your equation identify your a, b and c values and substitute in the equation

  35. triciaal
    • one year ago
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    to the nearest hundredths means to 2 decimal places. calculate to 3 places then round. to round if the 3rd digit is 5 or more add 1 to the 2nd place if the 3rd place is less than 5 you drop it.

  36. anonymous
    • one year ago
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    nvm i basically give up

  37. triciaal
    • one year ago
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    don't give up I am here to help you

  38. triciaal
    • one year ago
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    I guarantee you will get it what was posted above would discourage me too

  39. anonymous
    • one year ago
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    everyone is just confusing and i just dont know what any of this question wants

  40. triciaal
    • one year ago
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    |dw:1438270220942:dw|

  41. triciaal
    • one year ago
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    identify your a, b and c what do you get ?

  42. anonymous
    • one year ago
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    2x^2+3x+6=0

  43. triciaal
    • one year ago
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    that is your given equation in the correct format now look at the box above and compare the 2 equations tell me what is a what is b and what is c

  44. anonymous
    • one year ago
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    ok

  45. triciaal
    • one year ago
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    |dw:1438270578195:dw|

  46. anonymous
    • one year ago
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    then what

  47. triciaal
    • one year ago
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    tell me what is a, what is b and what is c

  48. triciaal
    • one year ago
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    are you here?

  49. anonymous
    • one year ago
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    i already said

  50. anonymous
    • one year ago
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    2x^2+3x+6=0

  51. triciaal
    • one year ago
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    if you want to get this you need to actually read properly and watch your attitude. I am very patient. you gave me the given equation. I said compare the equations and tell me the values of a, b and c

  52. triciaal
    • one year ago
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    |dw:1438271098708:dw|

  53. anonymous
    • one year ago
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    i wasnt sayind that with an attitude. i told you i already told you what it was

  54. triciaal
    • one year ago
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    after you have your values put in the formula I will repost it here

  55. triciaal
    • one year ago
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    and I am telling you not to tell me you already told me because if you read properly you will see you have not answered what I am asking so we can get the problem done

  56. triciaal
    • one year ago
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    have you told me what is a, what is b and what is c ? no you have not!

  57. triciaal
    • one year ago
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    I told you i am here to help you and to make sure you can do the problem in order to do that you need to answer the questions i ask and let me know when something is still not clear

  58. triciaal
    • one year ago
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    |dw:1438271419320:dw|

  59. triciaal
    • one year ago
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    here is the formula I reposted |dw:1438271451098:dw| now substitute the values in this equation

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