Question

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

Answer 1

Answer: 8

Step-by-step explanation:

The discriminant is $b^2-4ac$

in the equation:

$-x^2+4x-2$

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

plug into equation

$4^2-4(-1)(-2)$

$16-8$

⇒ $8$