You have to solve the quadratic and find k.
hi, i'm stuck on a question and would like some help please:
find the values for k for which the quadratic equation has equal roots. i used the discriminant theory and got it to = and then but i'm really not sure if any of this is right. could someone show me if this is the right way?
thanks, Mark
For the roots to be equal, the "plus minus" part must be zero. This means that:
. . . . .
. . . . .
. . . . .
That's where the earlier helper got his/her equation.
Now apply the Quadratic Formula to this equation to find the value(s) of k.