x^2-18x+81=-24

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Solution for x^2-18x+81=-24 equation:


Simplifying
x2 + -18x + 81 = -24

Reorder the terms:
81 + -18x + x2 = -24

Solving
81 + -18x + x2 = -24

Solving for variable 'x'.

Reorder the terms:
81 + 24 + -18x + x2 = -24 + 24

Combine like terms: 81 + 24 = 105
105 + -18x + x2 = -24 + 24

Combine like terms: -24 + 24 = 0
105 + -18x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-105' to each side of the equation.
105 + -18x + -105 + x2 = 0 + -105

Reorder the terms:
105 + -105 + -18x + x2 = 0 + -105

Combine like terms: 105 + -105 = 0
0 + -18x + x2 = 0 + -105
-18x + x2 = 0 + -105

Combine like terms: 0 + -105 = -105
-18x + x2 = -105

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 = -105 + 81

Reorder the terms:
81 + -18x + x2 = -105 + 81

Combine like terms: -105 + 81 = -24
81 + -18x + x2 = -24

Factor a perfect square on the left side:
(x + -9)(x + -9) = -24

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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