94x^2+201x+81=0

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Solution for 94x^2+201x+81=0 equation:


Simplifying
94x2 + 201x + 81 = 0

Reorder the terms:
81 + 201x + 94x2 = 0

Solving
81 + 201x + 94x2 = 0

Solving for variable 'x'.

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

Divide each side by '94'.
0.8617021277 + 2.138297872x + x2 = 0

Move the constant term to the right:

Add '-0.8617021277' to each side of the equation.
0.8617021277 + 2.138297872x + -0.8617021277 + x2 = 0 + -0.8617021277

Reorder the terms:
0.8617021277 + -0.8617021277 + 2.138297872x + x2 = 0 + -0.8617021277

Combine like terms: 0.8617021277 + -0.8617021277 = 0.0000000000
0.0000000000 + 2.138297872x + x2 = 0 + -0.8617021277
2.138297872x + x2 = 0 + -0.8617021277

Combine like terms: 0 + -0.8617021277 = -0.8617021277
2.138297872x + x2 = -0.8617021277

The x term is 2.138297872x.  Take half its coefficient (1.069148936).
Square it (1.143079447) and add it to both sides.

Add '1.143079447' to each side of the equation.
2.138297872x + 1.143079447 + x2 = -0.8617021277 + 1.143079447

Reorder the terms:
1.143079447 + 2.138297872x + x2 = -0.8617021277 + 1.143079447

Combine like terms: -0.8617021277 + 1.143079447 = 0.2813773193
1.143079447 + 2.138297872x + x2 = 0.2813773193

Factor a perfect square on the left side:
(x + 1.069148936)(x + 1.069148936) = 0.2813773193

Calculate the square root of the right side: 0.53045011

Break this problem into two subproblems by setting 
(x + 1.069148936) equal to 0.53045011 and -0.53045011.

Subproblem 1

x + 1.069148936 = 0.53045011 Simplifying x + 1.069148936 = 0.53045011 Reorder the terms: 1.069148936 + x = 0.53045011 Solving 1.069148936 + x = 0.53045011 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.069148936' to each side of the equation. 1.069148936 + -1.069148936 + x = 0.53045011 + -1.069148936 Combine like terms: 1.069148936 + -1.069148936 = 0.000000000 0.000000000 + x = 0.53045011 + -1.069148936 x = 0.53045011 + -1.069148936 Combine like terms: 0.53045011 + -1.069148936 = -0.538698826 x = -0.538698826 Simplifying x = -0.538698826

Subproblem 2

x + 1.069148936 = -0.53045011 Simplifying x + 1.069148936 = -0.53045011 Reorder the terms: 1.069148936 + x = -0.53045011 Solving 1.069148936 + x = -0.53045011 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.069148936' to each side of the equation. 1.069148936 + -1.069148936 + x = -0.53045011 + -1.069148936 Combine like terms: 1.069148936 + -1.069148936 = 0.000000000 0.000000000 + x = -0.53045011 + -1.069148936 x = -0.53045011 + -1.069148936 Combine like terms: -0.53045011 + -1.069148936 = -1.599599046 x = -1.599599046 Simplifying x = -1.599599046

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.538698826, -1.599599046}

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