SOLUTION: how do I solve f(x)=-(x-3)^2 as a quadratic function?

Question 1032404: how do I solve f(x)=-(x-3)^2 as a quadratic function?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Solving in this case means finding
the roots, or all when

I can see that solves this

------------------
This is called a "double root" because a
quadratic should have 2 solutions
-----------------------------------
The fact that there is one solution is shown by
both the graph and the quadratic formula:

When there is just one solution, the discriminant is zero

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

----------------
The discriminant is:

------------------
So, referring to quadratic formula, the
single root is at:

( what we decided already )
--------------------
Here's the plot:

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