Solve this quadratic equation using the quadratic formula.

x2 + 8x - 5 = 0
i need to show my work!

Question

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

jkristia · Answer

try and plug it in to the quadratic formula.

anonymous · Answer

identify 
a = 
b = 
c =

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

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

anonymous · Answer

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.

jkristia · Answer

so what is your answer?

anonymous · Answer

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!``

jkristia · Answer

you can always replace 'x' with your answer and see it you get 0, if you do you got it right.