Question

If the discriminant of a quadratic equation is 4, which statement describes the roots?

Answer 1

Answer: B. There are 2 real roots.

Explanation:

Edge 2023

Answer 2

Explanation:

I. If discriminant >0 then the quadratic equation has the roots x1 and x2 and

a) x1 and x2 are real numbers

b) x1≠x2

II. If discriminant =0 , then x1=x2 and is a real number

III. If discriminant < 0 the equation has complex roots , x1=a+bi ,

x2=a-bi , where i=V-1