SOLUTION: 3x^2-6x+c=0 what value of c will the equation have one rational root

SOLUTION: 3x^2-6x+c=0 what value of c will the equation have one rational root

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Question 952836: 3x^2-6x+c=0 what value of c will the equation have one rational root
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
In order to have 1 rational root, you have
to make in
the quadratic formula:

-----------------------------------

The equation for finding the roots is:

Here's the plot:

As you can see, it touches the x-axis in one place,
meaning 1 rational root

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