Question

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

Answer 1

something called a determinant will equal 0

x = v +- d ; when d=0, x = v

Answer 2

or is it the discriminant? they have to many d words they use

Answer 3

I thought it was when the radicand = 0?

Answer 4

yes, the inner part of the radicand is called the discriminant

Answer 5

Oh ok thanks (:

Answer 6

i think they should multiple words that begin with "d" and are multisyllabic in order to not confuse us lol