Find the discriminant and the number of real roots for this equation. x2 + 2x + 7 = 0
A. -24; no real roots
B. 28; one real root
C. 28; two real roots
D. -24; one real root

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.