Do I need to complete the square if #f(x) = x^2 - 6x + 9#?
You have several options when solving quadratic equations. With this particular problem you could ...
- Graph it
- Use Quadratic Formula
Completing the square is not needed here because the equation is already a perfect square trinomial. If you were to complete the square at the end of the process you would have the same exact equation.
Add 9 to both sides
I would have just used the factoring method.
I need the factors of