## Ady790 Group Title Solve this quadratic equation using the quadratic formula. x2 + 8x - 5 = 0 i need to show my work! 2 years ago 2 years ago

1. jkristia

try and plug it in to the quadratic formula.

2. dpaInc

identify a = b = c =

3. dpaInc

ax^2 + bx + c = 0 x^2 + 8x -5 = 0

4. nbouscal

$ax^2+bx+c=0\\ x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

5. brinethery

Oh dude I WISH I were still doing this sort of thing!

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

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!