Find x using completing the square method

x^2+16n+28 = 0

x=√-16n-28 or x=-√-16n-28

Step-by-step explanation:

Step 1: Add - 16n to both sides.

x2+16n+28+-16n=0+-16n

x2+28=-16n

Step 2: Add - 28 to both sides.

x2+28+-28=-16n+-28

x2=-16n-28

Step 3: Take square root.

x=√-16n-28 or x=-√-16n-28