Question

Calculate the discriminant.

x2 – 2x + 4 = 0

A.
–12

B.
12

C.
20

D.
0

Answer 1

The discriminant is \(b^2-4ac\)

Answer 2

For a quadratic equation like this, a=1, b=-2 & c=4. As @Luigi0210 has mentioned, discriminant is b^2-4ac. Can you work out the discriminant now? Please post your answer in this thread.

Answer 3

A

Answer 4

@milbes919180: You're correct.