Question

What is the value of the discriminant for the quadratic equation 0 = 2x^2 + x – 3?

Discriminant = b^2 – 4ac

A) –25
B) –23
C) 25
D) 26

Answer 1

What is the value of the discriminant for the quadratic equation 0 = 2x^2 + x – 3?

It would be C 25

Answer 2

the discriminant tells or discriminates how many roots there will be and what kind they are

that is the bit under the square root sign with is b^2-4ac

when you have
ax^2+bx+c=0
we have
2x^2+1x-3=0
a=2
b=1
c=-3
sub
b^2-4ac
1^2-4*2*-3
1+24
25

the discriminant is 25 C