.0714285714x^2-.1428571429x=1

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Solution for .0714285714x^2-.1428571429x=1 equation:


Simplifying
0.0714285714x2 + -0.1428571429x = 1

Reorder the terms:
-0.1428571429x + 0.0714285714x2 = 1

Solving
-0.1428571429x + 0.0714285714x2 = 1

Solving for variable 'x'.

Reorder the terms:
-1 + -0.1428571429x + 0.0714285714x2 = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -0.1428571429x + 0.0714285714x2 = 0

Begin completing the square.  Divide all terms by
0.0714285714 the coefficient of the squared term: 

Divide each side by '0.0714285714'.
-14.00000001 + -2.000000001x + x2 = 0

Move the constant term to the right:

Add '14.00000001' to each side of the equation.
-14.00000001 + -2.000000001x + 14.00000001 + x2 = 0 + 14.00000001

Reorder the terms:
-14.00000001 + 14.00000001 + -2.000000001x + x2 = 0 + 14.00000001

Combine like terms: -14.00000001 + 14.00000001 = 0.00000000
0.00000000 + -2.000000001x + x2 = 0 + 14.00000001
-2.000000001x + x2 = 0 + 14.00000001

Combine like terms: 0 + 14.00000001 = 14.00000001
-2.000000001x + x2 = 14.00000001

The x term is -2.000000001x.  Take half its coefficient (-1.000000001).
Square it (1.000000002) and add it to both sides.

Add '1.000000002' to each side of the equation.
-2.000000001x + 1.000000002 + x2 = 14.00000001 + 1.000000002

Reorder the terms:
1.000000002 + -2.000000001x + x2 = 14.00000001 + 1.000000002

Combine like terms: 14.00000001 + 1.000000002 = 15.000000012
1.000000002 + -2.000000001x + x2 = 15.000000012

Factor a perfect square on the left side:
(x + -1.000000001)(x + -1.000000001) = 15.000000012

Calculate the square root of the right side: 3.872983348

Break this problem into two subproblems by setting 
(x + -1.000000001) equal to 3.872983348 and -3.872983348.

Subproblem 1

x + -1.000000001 = 3.872983348 Simplifying x + -1.000000001 = 3.872983348 Reorder the terms: -1.000000001 + x = 3.872983348 Solving -1.000000001 + x = 3.872983348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.000000001' to each side of the equation. -1.000000001 + 1.000000001 + x = 3.872983348 + 1.000000001 Combine like terms: -1.000000001 + 1.000000001 = 0.000000000 0.000000000 + x = 3.872983348 + 1.000000001 x = 3.872983348 + 1.000000001 Combine like terms: 3.872983348 + 1.000000001 = 4.872983349 x = 4.872983349 Simplifying x = 4.872983349

Subproblem 2

x + -1.000000001 = -3.872983348 Simplifying x + -1.000000001 = -3.872983348 Reorder the terms: -1.000000001 + x = -3.872983348 Solving -1.000000001 + x = -3.872983348 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.000000001' to each side of the equation. -1.000000001 + 1.000000001 + x = -3.872983348 + 1.000000001 Combine like terms: -1.000000001 + 1.000000001 = 0.000000000 0.000000000 + x = -3.872983348 + 1.000000001 x = -3.872983348 + 1.000000001 Combine like terms: -3.872983348 + 1.000000001 = -2.872983347 x = -2.872983347 Simplifying x = -2.872983347

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.872983349, -2.872983347}

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