Question

What is the discriminant of the quadratic equation 0 = -x² + 4x − 2?

Answer 1

Answer: 8

Explanation:

The discriminant is
`b^2-4ac`

in the equation:

`-x^2+4x-2`

A = -1, B = 4, C = -2

plug into equation

`4^2-4(-1)(-2)`

`16-8`

⇒
`8`