You can directly read the vertex coordinates from the standard form equation. That gives information for graphing.
Observe that your given equation is equivalent to , so you should use this as your starting general-form equation.
-- ------Actually this is for the function . The vertex occurs at .
The only realistic graph for would be TWO points on a single numberline, only if these are real numbers and not containing imaginary parts. The zeros for your equation are .
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