Question

Given the equation below, which of the following shows the quadratic formula correctly applied?
x^2 + 5x - 8 = 0

Answer 1

What are the choices?

Answer 2

Here are the choices

Answer 3

Do you know what the quadratic formula is?

Answer 4

No

Answer 5

It is
\[x=\frac{ -b \pm \sqrt{b^2-4ac} }{ 2a }\]

Answer 6

Okay, whats the next step?

Answer 7

a is the number before x^2, b is the number before x, and c is the number that has no variable.

Answer 8

For us a=1, b=5, and c=-8

Answer 9

So my answer would be D?

Answer 10

Yes! Good job! :)

Answer 11

Okay, thank you.

Answer 12

You're welcome. You deserve a medal for your great work!