-14x^2+3x=-1

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Solution for -14x^2+3x=-1 equation:


Simplifying
-14x2 + 3x = -1

Reorder the terms:
3x + -14x2 = -1

Solving
3x + -14x2 = -1

Solving for variable 'x'.

Reorder the terms:
1 + 3x + -14x2 = -1 + 1

Combine like terms: -1 + 1 = 0
1 + 3x + -14x2 = 0

Begin completing the square.  Divide all terms by
-14 the coefficient of the squared term: 

Divide each side by '-14'.
-0.07142857143 + -0.2142857143x + x2 = 0

Move the constant term to the right:

Add '0.07142857143' to each side of the equation.
-0.07142857143 + -0.2142857143x + 0.07142857143 + x2 = 0 + 0.07142857143

Reorder the terms:
-0.07142857143 + 0.07142857143 + -0.2142857143x + x2 = 0 + 0.07142857143

Combine like terms: -0.07142857143 + 0.07142857143 = 0.00000000000
0.00000000000 + -0.2142857143x + x2 = 0 + 0.07142857143
-0.2142857143x + x2 = 0 + 0.07142857143

Combine like terms: 0 + 0.07142857143 = 0.07142857143
-0.2142857143x + x2 = 0.07142857143

The x term is -0.2142857143x.  Take half its coefficient (-0.1071428572).
Square it (0.01147959185) and add it to both sides.

Add '0.01147959185' to each side of the equation.
-0.2142857143x + 0.01147959185 + x2 = 0.07142857143 + 0.01147959185

Reorder the terms:
0.01147959185 + -0.2142857143x + x2 = 0.07142857143 + 0.01147959185

Combine like terms: 0.07142857143 + 0.01147959185 = 0.08290816328
0.01147959185 + -0.2142857143x + x2 = 0.08290816328

Factor a perfect square on the left side:
(x + -0.1071428572)(x + -0.1071428572) = 0.08290816328

Calculate the square root of the right side: 0.287937777

Break this problem into two subproblems by setting 
(x + -0.1071428572) equal to 0.287937777 and -0.287937777.

Subproblem 1

x + -0.1071428572 = 0.287937777 Simplifying x + -0.1071428572 = 0.287937777 Reorder the terms: -0.1071428572 + x = 0.287937777 Solving -0.1071428572 + x = 0.287937777 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1071428572' to each side of the equation. -0.1071428572 + 0.1071428572 + x = 0.287937777 + 0.1071428572 Combine like terms: -0.1071428572 + 0.1071428572 = 0.0000000000 0.0000000000 + x = 0.287937777 + 0.1071428572 x = 0.287937777 + 0.1071428572 Combine like terms: 0.287937777 + 0.1071428572 = 0.3950806342 x = 0.3950806342 Simplifying x = 0.3950806342

Subproblem 2

x + -0.1071428572 = -0.287937777 Simplifying x + -0.1071428572 = -0.287937777 Reorder the terms: -0.1071428572 + x = -0.287937777 Solving -0.1071428572 + x = -0.287937777 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1071428572' to each side of the equation. -0.1071428572 + 0.1071428572 + x = -0.287937777 + 0.1071428572 Combine like terms: -0.1071428572 + 0.1071428572 = 0.0000000000 0.0000000000 + x = -0.287937777 + 0.1071428572 x = -0.287937777 + 0.1071428572 Combine like terms: -0.287937777 + 0.1071428572 = -0.1807949198 x = -0.1807949198 Simplifying x = -0.1807949198

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.3950806342, -0.1807949198}

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