x^2+18x+81=-67

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Solution for x^2+18x+81=-67 equation:


Simplifying
x2 + 18x + 81 = -67

Reorder the terms:
81 + 18x + x2 = -67

Solving
81 + 18x + x2 = -67

Solving for variable 'x'.

Reorder the terms:
81 + 67 + 18x + x2 = -67 + 67

Combine like terms: 81 + 67 = 148
148 + 18x + x2 = -67 + 67

Combine like terms: -67 + 67 = 0
148 + 18x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-148' to each side of the equation.
148 + 18x + -148 + x2 = 0 + -148

Reorder the terms:
148 + -148 + 18x + x2 = 0 + -148

Combine like terms: 148 + -148 = 0
0 + 18x + x2 = 0 + -148
18x + x2 = 0 + -148

Combine like terms: 0 + -148 = -148
18x + x2 = -148

The x term is 18x.  Take half its coefficient (9).
Square it (81) and add it to both sides.

Add '81' to each side of the equation.
18x + 81 + x2 = -148 + 81

Reorder the terms:
81 + 18x + x2 = -148 + 81

Combine like terms: -148 + 81 = -67
81 + 18x + x2 = -67

Factor a perfect square on the left side:
(x + 9)(x + 9) = -67

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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