Question

What is the value of this discriminant?

Answer 1

I think that the answer is a bit I’m not too sure

Answer 2

The answer is A.

Explanation:

The formula of discriminant is D = b² - 4ac using ax² + bx + c. In this question, a is 1, b is -4 and c is 4. Then substitute the values into the formula :

D = b² - 4ac

D = (-4)² - 4(1)(4)

= 16 - 16

= 0