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anonymous

  • one year ago

Which of the following is a solution of 4x2 = - 9x - 4?

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  1. pooja195
    • one year ago
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    Do the directions specify what we have to solve by? Quadratic formula or Factoring?

  2. pooja195
    • one year ago
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    Step one: We need to get the equation into \[\huge~\rm~ax^2+bx+c=0 \] form. What do we do to get the equation into this form?

  3. anonymous
    • one year ago
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    Quadratic formula

  4. anonymous
    • one year ago
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    would i minus the 4x^2 on both sides?

  5. pooja195
    • one year ago
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    yes! :)

  6. anonymous
    • one year ago
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    ok now what ?

  7. pooja195
    • one year ago
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    \[\huge~\rm-4x^2- 9x - 4=0\]

  8. pooja195
    • one year ago
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    list your A B C values now :)

  9. anonymous
    • one year ago
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    a.9 plus or minus the square root of 17 divided by 8. b.negative 9 plus or minus the square root of 145 divided by 8. c.9 plus or minus the square root of 145 divided by 8. d.negative 9 plus or minus the square root of 17 divided by 8

  10. pooja195
    • one year ago
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    abc values...

  11. anonymous
    • one year ago
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    i dont understand:/

  12. pooja195
    • one year ago
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    ax^2+bx+c=0 -4x^2-9x-4=0 name the abc values now

  13. anonymous
    • one year ago
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    a=-4 b=-9 c=-4? like that

  14. pooja195
    • one year ago
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    Yes :) \[\huge~\rm~~x=\frac{ -(-9)~\pm \sqrt{(-9)^2-4(-4)(-4)} }{ 2(-4) } \]

  15. pooja195
    • one year ago
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    Solve \[\huge~\rm~~x=\frac{ 9~\pm \sqrt{(-9)^2-4(-4)(-4)} }{ 2(-4) } \]

  16. anonymous
    • one year ago
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    \[\frac{ 81-64? }/-8

  17. anonymous
    • one year ago
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    is this right?

  18. pooja195
    • one year ago
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    Not quite look at this: http://prntscr.com/7mvafb

  19. anonymous
    • one year ago
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    that makes a lot more since lol thank you so much. i got tones more but ill use your method lol

  20. pooja195
    • one year ago
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    :) try this: http://www.mathwarehouse.com/quadratic/quadratic-formula-calculator.php

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