-6x^2-8x+13-7-4x-13x=

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Solution for -6x^2-8x+13-7-4x-13x= equation:


Simplifying
-6x2 + -8x + 13 + -7 + -4x + -13x = 0

Reorder the terms:
13 + -7 + -8x + -4x + -13x + -6x2 = 0

Combine like terms: 13 + -7 = 6
6 + -8x + -4x + -13x + -6x2 = 0

Combine like terms: -8x + -4x = -12x
6 + -12x + -13x + -6x2 = 0

Combine like terms: -12x + -13x = -25x
6 + -25x + -6x2 = 0

Solving
6 + -25x + -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'.
-1 + 4.166666667x + x2 = 0

Move the constant term to the right:

Add '1' to each side of the equation.
-1 + 4.166666667x + 1 + x2 = 0 + 1

Reorder the terms:
-1 + 1 + 4.166666667x + x2 = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 4.166666667x + x2 = 0 + 1
4.166666667x + x2 = 0 + 1

Combine like terms: 0 + 1 = 1
4.166666667x + x2 = 1

The x term is 4.166666667x.  Take half its coefficient (2.083333334).
Square it (4.340277781) and add it to both sides.

Add '4.340277781' to each side of the equation.
4.166666667x + 4.340277781 + x2 = 1 + 4.340277781

Reorder the terms:
4.340277781 + 4.166666667x + x2 = 1 + 4.340277781

Combine like terms: 1 + 4.340277781 = 5.340277781
4.340277781 + 4.166666667x + x2 = 5.340277781

Factor a perfect square on the left side:
(x + 2.083333334)(x + 2.083333334) = 5.340277781

Calculate the square root of the right side: 2.310904105

Break this problem into two subproblems by setting 
(x + 2.083333334) equal to 2.310904105 and -2.310904105.

Subproblem 1

x + 2.083333334 = 2.310904105 Simplifying x + 2.083333334 = 2.310904105 Reorder the terms: 2.083333334 + x = 2.310904105 Solving 2.083333334 + x = 2.310904105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.083333334' to each side of the equation. 2.083333334 + -2.083333334 + x = 2.310904105 + -2.083333334 Combine like terms: 2.083333334 + -2.083333334 = 0.000000000 0.000000000 + x = 2.310904105 + -2.083333334 x = 2.310904105 + -2.083333334 Combine like terms: 2.310904105 + -2.083333334 = 0.227570771 x = 0.227570771 Simplifying x = 0.227570771

Subproblem 2

x + 2.083333334 = -2.310904105 Simplifying x + 2.083333334 = -2.310904105 Reorder the terms: 2.083333334 + x = -2.310904105 Solving 2.083333334 + x = -2.310904105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.083333334' to each side of the equation. 2.083333334 + -2.083333334 + x = -2.310904105 + -2.083333334 Combine like terms: 2.083333334 + -2.083333334 = 0.000000000 0.000000000 + x = -2.310904105 + -2.083333334 x = -2.310904105 + -2.083333334 Combine like terms: -2.310904105 + -2.083333334 = -4.394237439 x = -4.394237439 Simplifying x = -4.394237439

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.227570771, -4.394237439}

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