What is the discriminant of the polynomial below 2x2 + 5x - 8?

The discriminant of the given polynomial is 89.

Step-by-step explanation:

The given polynomial is

           .... (1)

If a polynomial is defined as

           .... (2)

then the discriminant of the polynomial is

From (1) and (2), we get

The discriminant of the given polynomial is

Therefore the discriminant of the given polynomial is 89.

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8