7x(6x-1)=2

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Solution for 7x(6x-1)=2 equation:


Simplifying
7x(6x + -1) = 2

Reorder the terms:
7x(-1 + 6x) = 2
(-1 * 7x + 6x * 7x) = 2
(-7x + 42x2) = 2

Solving
-7x + 42x2 = 2

Solving for variable 'x'.

Reorder the terms:
-2 + -7x + 42x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-2 + -7x + 42x2 = 0

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

Divide each side by '42'.
-0.04761904762 + -0.1666666667x + x2 = 0

Move the constant term to the right:

Add '0.04761904762' to each side of the equation.
-0.04761904762 + -0.1666666667x + 0.04761904762 + x2 = 0 + 0.04761904762

Reorder the terms:
-0.04761904762 + 0.04761904762 + -0.1666666667x + x2 = 0 + 0.04761904762

Combine like terms: -0.04761904762 + 0.04761904762 = 0.00000000000
0.00000000000 + -0.1666666667x + x2 = 0 + 0.04761904762
-0.1666666667x + x2 = 0 + 0.04761904762

Combine like terms: 0 + 0.04761904762 = 0.04761904762
-0.1666666667x + x2 = 0.04761904762

The x term is -0.1666666667x.  Take half its coefficient (-0.08333333335).
Square it (0.006944444447) and add it to both sides.

Add '0.006944444447' to each side of the equation.
-0.1666666667x + 0.006944444447 + x2 = 0.04761904762 + 0.006944444447

Reorder the terms:
0.006944444447 + -0.1666666667x + x2 = 0.04761904762 + 0.006944444447

Combine like terms: 0.04761904762 + 0.006944444447 = 0.054563492067
0.006944444447 + -0.1666666667x + x2 = 0.054563492067

Factor a perfect square on the left side:
(x + -0.08333333335)(x + -0.08333333335) = 0.054563492067

Calculate the square root of the right side: 0.233588296

Break this problem into two subproblems by setting 
(x + -0.08333333335) equal to 0.233588296 and -0.233588296.

Subproblem 1

x + -0.08333333335 = 0.233588296 Simplifying x + -0.08333333335 = 0.233588296 Reorder the terms: -0.08333333335 + x = 0.233588296 Solving -0.08333333335 + x = 0.233588296 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.08333333335' to each side of the equation. -0.08333333335 + 0.08333333335 + x = 0.233588296 + 0.08333333335 Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000 0.00000000000 + x = 0.233588296 + 0.08333333335 x = 0.233588296 + 0.08333333335 Combine like terms: 0.233588296 + 0.08333333335 = 0.31692162935 x = 0.31692162935 Simplifying x = 0.31692162935

Subproblem 2

x + -0.08333333335 = -0.233588296 Simplifying x + -0.08333333335 = -0.233588296 Reorder the terms: -0.08333333335 + x = -0.233588296 Solving -0.08333333335 + x = -0.233588296 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.08333333335' to each side of the equation. -0.08333333335 + 0.08333333335 + x = -0.233588296 + 0.08333333335 Combine like terms: -0.08333333335 + 0.08333333335 = 0.00000000000 0.00000000000 + x = -0.233588296 + 0.08333333335 x = -0.233588296 + 0.08333333335 Combine like terms: -0.233588296 + 0.08333333335 = -0.15025496265 x = -0.15025496265 Simplifying x = -0.15025496265

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.31692162935, -0.15025496265}

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