Question

Lead me...

Answer 1

on what

Answer 2

What is the value of\[ b^2 - 4ac\] for the following equation
\[x^2 + 5x + 4 = 0\]
Uhhh

Answer 3

that's in standard form, where a^2 + bx + c = 0

Answer 4

Yea?

Answer 5

x^2 = a ; 5x = b ; 4 = c

Answer 6

What it the next step?

Answer 7

so a = 1, b = 5, c = 4, you only use the coefficients. You basically just plug in those numbers into the equation

Answer 8

and solve?

Answer 9

yeah, you'll end up with a number

Answer 10

@erak this way?
1 + 5+ 4 = 0

Answer 11

so in b^2 - 4ac, you plug in the numbers I said like so:

5^2 - 4(1)(4)

Answer 12

Oh okay 9 is my asnwer :3

Answer 13

9 is correct

Answer 14

Thanks.

Answer 15

I agree with Erak:

"Erak Best Response Medals 1
so a = 1, b = 5, c = 4, you only use the coefficients. You basically just plug in those numbers into the equation"

But what equation? you are to focus solely on the "discriminant," which is b^2 - 4ac.
You are not solving this; rather, you are looking to find the value of b^2 - 4ac. It's 9.
You don't need or want the square root of 9 here, so omit the 3.