2x^2-23x+54=0

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Solution for 2x^2-23x+54=0 equation:


Simplifying
2x2 + -23x + 54 = 0

Reorder the terms:
54 + -23x + 2x2 = 0

Solving
54 + -23x + 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'.
27 + -11.5x + x2 = 0

Move the constant term to the right:

Add '-27' to each side of the equation.
27 + -11.5x + -27 + x2 = 0 + -27

Reorder the terms:
27 + -27 + -11.5x + x2 = 0 + -27

Combine like terms: 27 + -27 = 0
0 + -11.5x + x2 = 0 + -27
-11.5x + x2 = 0 + -27

Combine like terms: 0 + -27 = -27
-11.5x + x2 = -27

The x term is -11.5x.  Take half its coefficient (-5.75).
Square it (33.0625) and add it to both sides.

Add '33.0625' to each side of the equation.
-11.5x + 33.0625 + x2 = -27 + 33.0625

Reorder the terms:
33.0625 + -11.5x + x2 = -27 + 33.0625

Combine like terms: -27 + 33.0625 = 6.0625
33.0625 + -11.5x + x2 = 6.0625

Factor a perfect square on the left side:
(x + -5.75)(x + -5.75) = 6.0625

Calculate the square root of the right side: 2.46221445

Break this problem into two subproblems by setting 
(x + -5.75) equal to 2.46221445 and -2.46221445.

Subproblem 1

x + -5.75 = 2.46221445 Simplifying x + -5.75 = 2.46221445 Reorder the terms: -5.75 + x = 2.46221445 Solving -5.75 + x = 2.46221445 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + x = 2.46221445 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + x = 2.46221445 + 5.75 x = 2.46221445 + 5.75 Combine like terms: 2.46221445 + 5.75 = 8.21221445 x = 8.21221445 Simplifying x = 8.21221445

Subproblem 2

x + -5.75 = -2.46221445 Simplifying x + -5.75 = -2.46221445 Reorder the terms: -5.75 + x = -2.46221445 Solving -5.75 + x = -2.46221445 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.75' to each side of the equation. -5.75 + 5.75 + x = -2.46221445 + 5.75 Combine like terms: -5.75 + 5.75 = 0.00 0.00 + x = -2.46221445 + 5.75 x = -2.46221445 + 5.75 Combine like terms: -2.46221445 + 5.75 = 3.28778555 x = 3.28778555 Simplifying x = 3.28778555

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.21221445, 3.28778555}

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