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Ady790

Solve this quadratic equation using the quadratic formula. x2 + 8x - 5 = 0 i need to show my work!

  • one year ago
  • one year ago

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  1. jkristia
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    try and plug it in to the quadratic formula.

    • one year ago
  2. dpaInc
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    identify a = b = c =

    • one year ago
  3. dpaInc
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    ax^2 + bx + c = 0 x^2 + 8x -5 = 0

    • one year ago
  4. nbouscal
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    \[ax^2+bx+c=0\\ x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\]

    • one year ago
  5. brinethery
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    Oh dude I WISH I were still doing this sort of thing!

    • one year ago
  6. Ady790
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    I know how to do the quadratic formula I would really just want the answer to compare to mine and see if I got it right.

    • one year ago
  7. jkristia
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    so what is your answer?

    • one year ago
  8. brinethery
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    a=1 b=8 c=-5 because of the standard form ax^2+bx+c Plug those numbers into a, b, and c for that quadratic formula. Just plug and chug my friend!``

    • one year ago
  9. jkristia
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    you can always replace 'x' with your answer and see it you get 0, if you do you got it right.

    • one year ago
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