Question

Which values of c will cause the quadratic equation –x2 + 3x + c = 0 to have no real number solutions? Check all that apply.

Answer 1

A quadratic equation has no real number solutions than the discriminant is less than zero 

D < 0 

(b^2 -4ac) < 0 

(9 -4(-1*c) < 0

(9+4c) < 0

4c < -9

c < -9/4

hope this will help you 

Answer 2

Which values of c will cause the quadratic equation –x2 + 3x + c = 0 to have no real number solutions? Check all that apply. 

–5,-9/2