What is the discriminant of #x^2+2x+1=0# and what does that mean?
1 Answer
Jul 31, 2015
Solve y = x^2 + 2x + 1 = 0
Ans: Double root at x = -1
Explanation:
D = 4 - 4 = 0.
This means there is a double root at x = - 1 .
In fact, y is in the form:
