10
QuizMultiple Choice

Introduction to the Quadratic Formula

Question 10 • Common Core Algebra I 2014 - MA3109 B-CR

What is the value of the discriminant for the quadratic equation 0 = 2x2 + x – 3?Discriminant = b2 – 4ac

Answer
A
–25
B
–23
C
25
D
26

Explanation

For a quadratic in the form ax² + bx + c = 0, the discriminant is b² − 4ac. Here a = 2, b = 1, and c = −3, so the discriminant is 1² − 4(2)(−3) = 1 + 24 = 25. The correct choice is 25.

AI-written and checked against the verified answer.