Question

Consider the quadratic equation x2+5x+11=0. What is the discriminant of the quadratic equation?

Answer 1

The discriminant of a quadratic equation
`a{x}^(2) +bx+c=0` is given by
`{b}^(2)-4ac`.
Plugging in, we get
`{(1)}^(2) -4(5)(11)=1-220=\boxed{-219}`.
...Trivial plugging in; really no thought required. I don't like seeing questions like these in math class.