6x^2-7x-196=0

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Solution for 6x^2-7x-196=0 equation:


Simplifying
6x2 + -7x + -196 = 0

Reorder the terms:
-196 + -7x + 6x2 = 0

Solving
-196 + -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'.
-32.66666667 + -1.166666667x + x2 = 0

Move the constant term to the right:

Add '32.66666667' to each side of the equation.
-32.66666667 + -1.166666667x + 32.66666667 + x2 = 0 + 32.66666667

Reorder the terms:
-32.66666667 + 32.66666667 + -1.166666667x + x2 = 0 + 32.66666667

Combine like terms: -32.66666667 + 32.66666667 = 0.00000000
0.00000000 + -1.166666667x + x2 = 0 + 32.66666667
-1.166666667x + x2 = 0 + 32.66666667

Combine like terms: 0 + 32.66666667 = 32.66666667
-1.166666667x + x2 = 32.66666667

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 = 32.66666667 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667x + x2 = 32.66666667 + 0.3402777780

Combine like terms: 32.66666667 + 0.3402777780 = 33.006944448
0.3402777780 + -1.166666667x + x2 = 33.006944448

Factor a perfect square on the left side:
(x + -0.5833333335)(x + -0.5833333335) = 33.006944448

Calculate the square root of the right side: 5.745167051

Break this problem into two subproblems by setting 
(x + -0.5833333335) equal to 5.745167051 and -5.745167051.

Subproblem 1

x + -0.5833333335 = 5.745167051 Simplifying x + -0.5833333335 = 5.745167051 Reorder the terms: -0.5833333335 + x = 5.745167051 Solving -0.5833333335 + x = 5.745167051 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 = 5.745167051 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = 5.745167051 + 0.5833333335 x = 5.745167051 + 0.5833333335 Combine like terms: 5.745167051 + 0.5833333335 = 6.3285003845 x = 6.3285003845 Simplifying x = 6.3285003845

Subproblem 2

x + -0.5833333335 = -5.745167051 Simplifying x + -0.5833333335 = -5.745167051 Reorder the terms: -0.5833333335 + x = -5.745167051 Solving -0.5833333335 + x = -5.745167051 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 = -5.745167051 + 0.5833333335 Combine like terms: -0.5833333335 + 0.5833333335 = 0.0000000000 0.0000000000 + x = -5.745167051 + 0.5833333335 x = -5.745167051 + 0.5833333335 Combine like terms: -5.745167051 + 0.5833333335 = -5.1618337175 x = -5.1618337175 Simplifying x = -5.1618337175

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.3285003845, -5.1618337175}

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