Question

How can you tell when a quadratic equation has two identical, rational solutions?

Answer 1

Discriminant = 0

Answer 2

or b^2 - 4ac = 0
(for an equation in the form of: ax^2+bx+c = 0)

Answer 3

thank you

Answer 4

bahrom, it would have been nice to see an example

Answer 5

if \[\Delta=b^2-4ac=0\]
then you have just one solution, because roots are the same..

Answer 6

hero, you can provide one.

Answer 7

if \[\Delta >0\] then you have two real solution

Answer 8

Why do I have to provide an example for a general solution that I didn't provide? I'm asking you to prove that what you say is true.