Question

Use the discriminant to determine the nature of the roots of -2x2 - 5x - 2= 0

Answer 1

The question is asking you how many roots the equation has.

The discriminant is:
\[\large b^2 - 4ac\]
If that is greater than 0, you have 2 roots.
If that is equal to 0, you have 1 root .
If that is less than 0, you have no roots.