2x^2-24x+81=0

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Solution for 2x^2-24x+81=0 equation:


Simplifying
2x2 + -24x + 81 = 0

Reorder the terms:
81 + -24x + 2x2 = 0

Solving
81 + -24x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
40.5 + -12x + x2 = 0

Move the constant term to the right:

Add '-40.5' to each side of the equation.
40.5 + -12x + -40.5 + x2 = 0 + -40.5

Reorder the terms:
40.5 + -40.5 + -12x + x2 = 0 + -40.5

Combine like terms: 40.5 + -40.5 = 0.0
0.0 + -12x + x2 = 0 + -40.5
-12x + x2 = 0 + -40.5

Combine like terms: 0 + -40.5 = -40.5
-12x + x2 = -40.5

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

Add '36' to each side of the equation.
-12x + 36 + x2 = -40.5 + 36

Reorder the terms:
36 + -12x + x2 = -40.5 + 36

Combine like terms: -40.5 + 36 = -4.5
36 + -12x + x2 = -4.5

Factor a perfect square on the left side:
(x + -6)(x + -6) = -4.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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