If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?

A)There are two complex roots.
B)There are two real roots.
C)There is one real root.
D)There is one complex root.

Question

If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?

A)There are two complex roots.
B)There are two real roots.
C)There is one real root.
D)There is one complex root.

campbell_st · Answer

the discriminant is part of the general quadratic formula 

$$\Delta = b^2 - 4ac$$

and the formula is 

$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

and the general quadratic formula is used to find the roots or zeros... 

so my question is this 

what is the value of $$\sqrt{-8}$$