Question

Which statement concerning the equation x^2+2=x is true?


Its discriminant is 0 , so it has no solution.


Its discriminant is 0 , so it has one real solution.


Its discriminant is -7, so it has two complex solutions.


Its discriminant is -7, so its solutions are negative.

Answer 1

set it up in the usual way

x^2-x+2 = 0

b^2-4ac = 1-8 = -7

so, what does a negative discriminant tell you?