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Ady790

  • 3 years ago

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

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  1. jkristia
    • 3 years ago
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    try and plug it in to the quadratic formula.

  2. dpaInc
    • 3 years ago
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    identify a = b = c =

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

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

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

  6. Ady790
    • 3 years ago
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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.

  7. jkristia
    • 3 years ago
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    so what is your answer?

  8. brinethery
    • 3 years ago
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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!``

  9. jkristia
    • 3 years ago
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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.

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