9x^2-x+81=0

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Solution for 9x^2-x+81=0 equation:


Simplifying
9x2 + -1x + 81 = 0

Reorder the terms:
81 + -1x + 9x2 = 0

Solving
81 + -1x + 9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
9 the coefficient of the squared term: 

Divide each side by '9'.
9 + -0.1111111111x + x2 = 0

Move the constant term to the right:

Add '-9' to each side of the equation.
9 + -0.1111111111x + -9 + x2 = 0 + -9

Reorder the terms:
9 + -9 + -0.1111111111x + x2 = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -0.1111111111x + x2 = 0 + -9
-0.1111111111x + x2 = 0 + -9

Combine like terms: 0 + -9 = -9
-0.1111111111x + x2 = -9

The x term is -0.1111111111x.  Take half its coefficient (-0.05555555555).
Square it (0.003086419752) and add it to both sides.

Add '0.003086419752' to each side of the equation.
-0.1111111111x + 0.003086419752 + x2 = -9 + 0.003086419752

Reorder the terms:
0.003086419752 + -0.1111111111x + x2 = -9 + 0.003086419752

Combine like terms: -9 + 0.003086419752 = -8.996913580248
0.003086419752 + -0.1111111111x + x2 = -8.996913580248

Factor a perfect square on the left side:
(x + -0.05555555555)(x + -0.05555555555) = -8.996913580248

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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