w^2+12w+81=0

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Solution for w^2+12w+81=0 equation:


Simplifying
w2 + 12w + 81 = 0

Reorder the terms:
81 + 12w + w2 = 0

Solving
81 + 12w + w2 = 0

Solving for variable 'w'.

Begin completing the square.

Move the constant term to the right:

Add '-81' to each side of the equation.
81 + 12w + -81 + w2 = 0 + -81

Reorder the terms:
81 + -81 + 12w + w2 = 0 + -81

Combine like terms: 81 + -81 = 0
0 + 12w + w2 = 0 + -81
12w + w2 = 0 + -81

Combine like terms: 0 + -81 = -81
12w + w2 = -81

The w term is 12w.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12w + 36 + w2 = -81 + 36

Reorder the terms:
36 + 12w + w2 = -81 + 36

Combine like terms: -81 + 36 = -45
36 + 12w + w2 = -45

Factor a perfect square on the left side:
(w + 6)(w + 6) = -45

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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