Question

Solve the quadratic equation by completing the square.

x2+16x+54=0

First, choose the appropriate form and fill in the blanks with the correct numbers.
Then, solve the equation. If there is more than one solution, separate them with commas.

The question also requires that I select form and fill in blanks

choose either 

(x+_)^2=_ or (x-_)^2=_

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