6x^2-7x-13824=0

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Solution for 6x^2-7x-13824=0 equation:


Simplifying
6x2 + -7x + -13824 = 0

Reorder the terms:
-13824 + -7x + 6x2 = 0

Solving
-13824 + -7x + 6x2 = 0

Solving for variable 'x'.

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

Divide each side by '6'.
-2304 + -1.166666667x + x2 = 0

Move the constant term to the right:

Add '2304' to each side of the equation.
-2304 + -1.166666667x + 2304 + x2 = 0 + 2304

Reorder the terms:
-2304 + 2304 + -1.166666667x + x2 = 0 + 2304

Combine like terms: -2304 + 2304 = 0
0 + -1.166666667x + x2 = 0 + 2304
-1.166666667x + x2 = 0 + 2304

Combine like terms: 0 + 2304 = 2304
-1.166666667x + x2 = 2304

The x term is -1.166666667x.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667x + 0.3402777780 + x2 = 2304 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667x + x2 = 2304 + 0.3402777780

Combine like terms: 2304 + 0.3402777780 = 2304.340277778
0.3402777780 + -1.166666667x + x2 = 2304.340277778

Factor a perfect square on the left side:
(x + -0.5833333335)(x + -0.5833333335) = 2304.340277778

Calculate the square root of the right side: 48.003544429

Break this problem into two subproblems by setting 
(x + -0.5833333335) equal to 48.003544429 and -48.003544429.

Subproblem 1

x + -0.5833333335 = 48.003544429 Simplifying x + -0.5833333335 = 48.003544429 Reorder the terms: -0.5833333335 + x = 48.003544429 Solving -0.5833333335 + x = 48.003544429 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = 48.003544429 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = 48.003544429 + 0.5833333335 x = 48.003544429 + 0.5833333335 Combine like terms: 48.003544429 + 0.5833333335 = 48.5868777625 x = 48.5868777625 Simplifying x = 48.5868777625

Subproblem 2

x + -0.5833333335 = -48.003544429 Simplifying x + -0.5833333335 = -48.003544429 Reorder the terms: -0.5833333335 + x = -48.003544429 Solving -0.5833333335 + x = -48.003544429 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5833333335' to each side of the equation. -0.5833333335 + 0.5833333335 + x = -48.003544429 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = -48.003544429 + 0.5833333335 x = -48.003544429 + 0.5833333335 Combine like terms: -48.003544429 + 0.5833333335 = -47.4202110955 x = -47.4202110955 Simplifying x = -47.4202110955

Solution

The solution to the problem is based on the solutions from the subproblems. x = {48.5868777625, -47.4202110955}

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