Question

Use the discriminant to determine whether the following equations have solutions that are: two different rational solutions; two different irrational solutions; exactly one rational solution; or two different imaginary solutions.
8x^2+2x+4=0

Answer 1

what do we get as the discriminant?

Answer 2

thats all the question says

Answer 3

i see that. So what do you get for the discriminant?

Answer 4

in order to use the discriminant, you must first know what it is ; which is not what the question asks for

Answer 5

i really dont know know

Answer 6

I'll give you a hint britt. It's part of the quadratic formula

Answer 7

hmmm .... well, its quite simple to find it; but i think they should of at least tried to teach you about the discriminant before they ask you to use it :)

Answer 8

given the equation in tthe form: ax^2 + bx + c ... which this form is.

we can use the numbers that relate to b^2 -4ac, which is the discriminate of the equation

Answer 9

8x^2+2x+4

2^2 -4(8)(4)

4 - 16(8)

4 - 128 = -124

Answer 10

now the we know the discriminant is -124; we can use it

Answer 11

Do you know how to use it now?

Answer 12

yes

Answer 13

good, tell me what we can do with it :)