14x^2+x+1=0

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Solution for 14x^2+x+1=0 equation:


Simplifying
14x2 + x + 1 = 0

Reorder the terms:
1 + x + 14x2 = 0

Solving
1 + x + 14x2 = 0

Solving for variable 'x'.

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

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

Move the constant term to the right:

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

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

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

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

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
0.07142857143x + 0.25 + x2 = -0.07142857143 + 0.25

Reorder the terms:
0.25 + 0.07142857143x + x2 = -0.07142857143 + 0.25

Combine like terms: -0.07142857143 + 0.25 = 0.17857142857
0.25 + 0.07142857143x + x2 = 0.17857142857

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.17857142857

Calculate the square root of the right side: 0.422577127

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.422577127 and -0.422577127.

Subproblem 1

x + 0.5 = 0.422577127 Simplifying x + 0.5 = 0.422577127 Reorder the terms: 0.5 + x = 0.422577127 Solving 0.5 + x = 0.422577127 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.422577127 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.422577127 + -0.5 x = 0.422577127 + -0.5 Combine like terms: 0.422577127 + -0.5 = -0.077422873 x = -0.077422873 Simplifying x = -0.077422873

Subproblem 2

x + 0.5 = -0.422577127 Simplifying x + 0.5 = -0.422577127 Reorder the terms: 0.5 + x = -0.422577127 Solving 0.5 + x = -0.422577127 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.422577127 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.422577127 + -0.5 x = -0.422577127 + -0.5 Combine like terms: -0.422577127 + -0.5 = -0.922577127 x = -0.922577127 Simplifying x = -0.922577127

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.077422873, -0.922577127}

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