What is the discriminant of the quadratic equation 0 = 2x2 + 3x – 5?

a. –37
b. –31
c. 43
d. 49

ANSWER

The discriminant is



EXPLANATION

The given equation is


We can rewrite this as,



When we compare this to the general quadratic equation, we obtain;



The discriminant is given by,



We substitute the values to obtain,





We simplify to get,



Hence the correct answer is D.

Idon’t know how to do that