Question

MULTIPLE CHOICE:

What is the discriminant of the quadratic equation 2x^2+8x−5=0

A. 104
B. -24
C. -104
D. 24

Answer 1

104

Explanation:

2x^2+8x−5=0

This is written in the form

ax^2 + bx+c

a =2 b = 8 c=-5

The discriminant is

b^2 -4ac

8^2 - 4(2)(-5)

64 + 40

104

The discriminant is 104