$\"\"$

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The polynomial is $\"\"$ .

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The standard form of quadratic equation is $\"\"$ .

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Compare the above two equations $\"\"$ and $\"\"$ .

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Use complete the square algorithm method.

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Step 1: Find one half of the coefficient of $\"\"$ .

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Find $\"\"$ .

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$

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Step 2: Square the result in step 1.

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$\"\"$ (Substitute $\"\"$ )

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$\"\"$ (Evaluate powers: $\"\"$ )

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$\"\"$

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Step 3: Add the result of step 2 to $\"\"$ .

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Completing the square: $\"\"$ .

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Add the result of step 2 to $\"\"$ .

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$\"\"$ .

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Compared original polynomial and resultant polynomial.

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Thus, $\"\"$ .

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$\"\"$

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$\"\"$ .