00:01
This question is asked me to identify the discriminant.
00:03
And then based on my discriminant, what is the number of real solutions? so my discriminant is the part that's underneath the square root for the quadratic formula.
00:12
It's b squared minus 4a, c.
00:15
And now if my discriminant is greater than zero, i have two real.
00:21
If my discriminant equals zero, i have one real.
00:25
And if my discriminant is less than zero, it would be imaginary.
00:31
So it will be zero rear.
00:33
So i'm just going to plug it in.
00:34
This is my a, my b, my c.
00:37
So it's going to be negative 8 squared.
00:40
I'm always going to put it in parentheses when i'm plugging something in times three times three...