Question

Find the discriminant and the number of real roots for this equation.

x^2+2x+8=0

A. 32; two real roots
B. -28; one real root
C. 32; one real root
D. -28; no real roots

Answer 1

D

Explanation:

To find the discriminant you do b^2-4(a)(c), which in this case gives you -28. If your discriminant is less than zero, you will have no real roots.