3x^2-68x-192=0

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Solution for 3x^2-68x-192=0 equation:


Simplifying
3x2 + -68x + -192 = 0

Reorder the terms:
-192 + -68x + 3x2 = 0

Solving
-192 + -68x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-64 + -22.66666667x + x2 = 0

Move the constant term to the right:

Add '64' to each side of the equation.
-64 + -22.66666667x + 64 + x2 = 0 + 64

Reorder the terms:
-64 + 64 + -22.66666667x + x2 = 0 + 64

Combine like terms: -64 + 64 = 0
0 + -22.66666667x + x2 = 0 + 64
-22.66666667x + x2 = 0 + 64

Combine like terms: 0 + 64 = 64
-22.66666667x + x2 = 64

The x term is -22.66666667x.  Take half its coefficient (-11.33333334).
Square it (128.4444446) and add it to both sides.

Add '128.4444446' to each side of the equation.
-22.66666667x + 128.4444446 + x2 = 64 + 128.4444446

Reorder the terms:
128.4444446 + -22.66666667x + x2 = 64 + 128.4444446

Combine like terms: 64 + 128.4444446 = 192.4444446
128.4444446 + -22.66666667x + x2 = 192.4444446

Factor a perfect square on the left side:
(x + -11.33333334)(x + -11.33333334) = 192.4444446

Calculate the square root of the right side: 13.872434703

Break this problem into two subproblems by setting 
(x + -11.33333334) equal to 13.872434703 and -13.872434703.

Subproblem 1

x + -11.33333334 = 13.872434703 Simplifying x + -11.33333334 = 13.872434703 Reorder the terms: -11.33333334 + x = 13.872434703 Solving -11.33333334 + x = 13.872434703 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.33333334' to each side of the equation. -11.33333334 + 11.33333334 + x = 13.872434703 + 11.33333334 Combine like terms: -11.33333334 + 11.33333334 = 0.00000000 0.00000000 + x = 13.872434703 + 11.33333334 x = 13.872434703 + 11.33333334 Combine like terms: 13.872434703 + 11.33333334 = 25.205768043 x = 25.205768043 Simplifying x = 25.205768043

Subproblem 2

x + -11.33333334 = -13.872434703 Simplifying x + -11.33333334 = -13.872434703 Reorder the terms: -11.33333334 + x = -13.872434703 Solving -11.33333334 + x = -13.872434703 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '11.33333334' to each side of the equation. -11.33333334 + 11.33333334 + x = -13.872434703 + 11.33333334 Combine like terms: -11.33333334 + 11.33333334 = 0.00000000 0.00000000 + x = -13.872434703 + 11.33333334 x = -13.872434703 + 11.33333334 Combine like terms: -13.872434703 + 11.33333334 = -2.539101363 x = -2.539101363 Simplifying x = -2.539101363

Solution

The solution to the problem is based on the solutions from the subproblems. x = {25.205768043, -2.539101363}

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