0=19.4316x^2-141.654x+124.18

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Solution for 0=19.4316x^2-141.654x+124.18 equation:


Simplifying
0 = 19.4316x2 + -141.654x + 124.18

Reorder the terms:
0 = 124.18 + -141.654x + 19.4316x2

Solving
0 = 124.18 + -141.654x + 19.4316x2

Solving for variable 'x'.

Combine like terms: 0 + -124.18 = -124.18
-124.18 + 141.654x + -19.4316x2 = 124.18 + -141.654x + 19.4316x2 + -124.18 + 141.654x + -19.4316x2

Reorder the terms:
-124.18 + 141.654x + -19.4316x2 = 124.18 + -124.18 + -141.654x + 141.654x + 19.4316x2 + -19.4316x2

Combine like terms: 124.18 + -124.18 = 0.00
-124.18 + 141.654x + -19.4316x2 = 0.00 + -141.654x + 141.654x + 19.4316x2 + -19.4316x2
-124.18 + 141.654x + -19.4316x2 = -141.654x + 141.654x + 19.4316x2 + -19.4316x2

Combine like terms: -141.654x + 141.654x = 0.000
-124.18 + 141.654x + -19.4316x2 = 0.000 + 19.4316x2 + -19.4316x2
-124.18 + 141.654x + -19.4316x2 = 19.4316x2 + -19.4316x2

Combine like terms: 19.4316x2 + -19.4316x2 = 0.0000
-124.18 + 141.654x + -19.4316x2 = 0.0000

Begin completing the square.  Divide all terms by
-19.4316 the coefficient of the squared term: 

Divide each side by '-19.4316'.
6.390621462 + -7.289878342x + x2 = 0

Move the constant term to the right:

Add '-6.390621462' to each side of the equation.
6.390621462 + -7.289878342x + -6.390621462 + x2 = 0 + -6.390621462

Reorder the terms:
6.390621462 + -6.390621462 + -7.289878342x + x2 = 0 + -6.390621462

Combine like terms: 6.390621462 + -6.390621462 = 0.000000000
0.000000000 + -7.289878342x + x2 = 0 + -6.390621462
-7.289878342x + x2 = 0 + -6.390621462

Combine like terms: 0 + -6.390621462 = -6.390621462
-7.289878342x + x2 = -6.390621462

The x term is -7.289878342x.  Take half its coefficient (-3.644939171).
Square it (13.28558156) and add it to both sides.

Add '13.28558156' to each side of the equation.
-7.289878342x + 13.28558156 + x2 = -6.390621462 + 13.28558156

Reorder the terms:
13.28558156 + -7.289878342x + x2 = -6.390621462 + 13.28558156

Combine like terms: -6.390621462 + 13.28558156 = 6.894960098
13.28558156 + -7.289878342x + x2 = 6.894960098

Factor a perfect square on the left side:
(x + -3.644939171)(x + -3.644939171) = 6.894960098

Calculate the square root of the right side: 2.625825603

Break this problem into two subproblems by setting 
(x + -3.644939171) equal to 2.625825603 and -2.625825603.

Subproblem 1

x + -3.644939171 = 2.625825603 Simplifying x + -3.644939171 = 2.625825603 Reorder the terms: -3.644939171 + x = 2.625825603 Solving -3.644939171 + x = 2.625825603 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.644939171' to each side of the equation. -3.644939171 + 3.644939171 + x = 2.625825603 + 3.644939171 Combine like terms: -3.644939171 + 3.644939171 = 0.000000000 0.000000000 + x = 2.625825603 + 3.644939171 x = 2.625825603 + 3.644939171 Combine like terms: 2.625825603 + 3.644939171 = 6.270764774 x = 6.270764774 Simplifying x = 6.270764774

Subproblem 2

x + -3.644939171 = -2.625825603 Simplifying x + -3.644939171 = -2.625825603 Reorder the terms: -3.644939171 + x = -2.625825603 Solving -3.644939171 + x = -2.625825603 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.644939171' to each side of the equation. -3.644939171 + 3.644939171 + x = -2.625825603 + 3.644939171 Combine like terms: -3.644939171 + 3.644939171 = 0.000000000 0.000000000 + x = -2.625825603 + 3.644939171 x = -2.625825603 + 3.644939171 Combine like terms: -2.625825603 + 3.644939171 = 1.019113568 x = 1.019113568 Simplifying x = 1.019113568

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.270764774, 1.019113568}

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