Using the Completed Square Form
Match the form named in the question. The square is the same; only the final arrangement changes. Letters in the requested form stand for constants you must find; match their positions, not their names.
Express in the form , where and are integers and is given in terms of .
The letter changes nothing. Carry it along like any other constant.
Reuse the completed square. Undo a square with and keep the answer exact when asked.
Complete the square once, then reuse the result in every part.