Let 3x^2 +4x + c=0. What value of C will give us exactly one solution for X?
If we want a quadratic equation to have 1 root, the discriminant must be 0.
so, b2 - 4ac = 0
a=3
b=4
c = ?
42 - 4(3)(c) = 0
16-12c = 0
-12c=-16
c=16/12
c=4/3
I see, thanks!
