27x^2-51x-26=0

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Solution for 27x^2-51x-26=0 equation:


Simplifying
27x2 + -51x + -26 = 0

Reorder the terms:
-26 + -51x + 27x2 = 0

Solving
-26 + -51x + 27x2 = 0

Solving for variable 'x'.

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

Divide each side by '27'.
-0.962962963 + -1.888888889x + x2 = 0

Move the constant term to the right:

Add '0.962962963' to each side of the equation.
-0.962962963 + -1.888888889x + 0.962962963 + x2 = 0 + 0.962962963

Reorder the terms:
-0.962962963 + 0.962962963 + -1.888888889x + x2 = 0 + 0.962962963

Combine like terms: -0.962962963 + 0.962962963 = 0.000000000
0.000000000 + -1.888888889x + x2 = 0 + 0.962962963
-1.888888889x + x2 = 0 + 0.962962963

Combine like terms: 0 + 0.962962963 = 0.962962963
-1.888888889x + x2 = 0.962962963

The x term is -1.888888889x.  Take half its coefficient (-0.9444444445).
Square it (0.8919753087) and add it to both sides.

Add '0.8919753087' to each side of the equation.
-1.888888889x + 0.8919753087 + x2 = 0.962962963 + 0.8919753087

Reorder the terms:
0.8919753087 + -1.888888889x + x2 = 0.962962963 + 0.8919753087

Combine like terms: 0.962962963 + 0.8919753087 = 1.8549382717
0.8919753087 + -1.888888889x + x2 = 1.8549382717

Factor a perfect square on the left side:
(x + -0.9444444445)(x + -0.9444444445) = 1.8549382717

Calculate the square root of the right side: 1.361961186

Break this problem into two subproblems by setting 
(x + -0.9444444445) equal to 1.361961186 and -1.361961186.

Subproblem 1

x + -0.9444444445 = 1.361961186 Simplifying x + -0.9444444445 = 1.361961186 Reorder the terms: -0.9444444445 + x = 1.361961186 Solving -0.9444444445 + x = 1.361961186 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9444444445' to each side of the equation. -0.9444444445 + 0.9444444445 + x = 1.361961186 + 0.9444444445 Combine like terms: -0.9444444445 + 0.9444444445 = 0.0000000000 0.0000000000 + x = 1.361961186 + 0.9444444445 x = 1.361961186 + 0.9444444445 Combine like terms: 1.361961186 + 0.9444444445 = 2.3064056305 x = 2.3064056305 Simplifying x = 2.3064056305

Subproblem 2

x + -0.9444444445 = -1.361961186 Simplifying x + -0.9444444445 = -1.361961186 Reorder the terms: -0.9444444445 + x = -1.361961186 Solving -0.9444444445 + x = -1.361961186 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.9444444445' to each side of the equation. -0.9444444445 + 0.9444444445 + x = -1.361961186 + 0.9444444445 Combine like terms: -0.9444444445 + 0.9444444445 = 0.0000000000 0.0000000000 + x = -1.361961186 + 0.9444444445 x = -1.361961186 + 0.9444444445 Combine like terms: -1.361961186 + 0.9444444445 = -0.4175167415 x = -0.4175167415 Simplifying x = -0.4175167415

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.3064056305, -0.4175167415}

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