x^2-27x-6=0

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Solution for x^2-27x-6=0 equation:


Simplifying
x2 + -27x + -6 = 0

Reorder the terms:
-6 + -27x + x2 = 0

Solving
-6 + -27x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + -27x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + -27x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + -27x + x2 = 0 + 6
-27x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
-27x + x2 = 6

The x term is -27x.  Take half its coefficient (-13.5).
Square it (182.25) and add it to both sides.

Add '182.25' to each side of the equation.
-27x + 182.25 + x2 = 6 + 182.25

Reorder the terms:
182.25 + -27x + x2 = 6 + 182.25

Combine like terms: 6 + 182.25 = 188.25
182.25 + -27x + x2 = 188.25

Factor a perfect square on the left side:
(x + -13.5)(x + -13.5) = 188.25

Calculate the square root of the right side: 13.720422734

Break this problem into two subproblems by setting 
(x + -13.5) equal to 13.720422734 and -13.720422734.

Subproblem 1

x + -13.5 = 13.720422734 Simplifying x + -13.5 = 13.720422734 Reorder the terms: -13.5 + x = 13.720422734 Solving -13.5 + x = 13.720422734 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + x = 13.720422734 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = 13.720422734 + 13.5 x = 13.720422734 + 13.5 Combine like terms: 13.720422734 + 13.5 = 27.220422734 x = 27.220422734 Simplifying x = 27.220422734

Subproblem 2

x + -13.5 = -13.720422734 Simplifying x + -13.5 = -13.720422734 Reorder the terms: -13.5 + x = -13.720422734 Solving -13.5 + x = -13.720422734 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '13.5' to each side of the equation. -13.5 + 13.5 + x = -13.720422734 + 13.5 Combine like terms: -13.5 + 13.5 = 0.0 0.0 + x = -13.720422734 + 13.5 x = -13.720422734 + 13.5 Combine like terms: -13.720422734 + 13.5 = -0.220422734 x = -0.220422734 Simplifying x = -0.220422734

Solution

The solution to the problem is based on the solutions from the subproblems. x = {27.220422734, -0.220422734}

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