Question

Use the discriminant to determine the nature of the roots of -x2 + 4x – 4 = 0.

Answer 1

discriminant = b^2-4ac

Answer 2

quadratic equation of the form: \(ax^2+bx+c=0\)
has a thing colled discriminant: \(b^2-4ac\)
if disriminant is >0 , means there are 2 distinct roots
if discriminant is =0 means there are two equal roots
if discriminant is <0 means there are no real roots