0=0.00868x^2-0.868x+15.451

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Solution for 0=0.00868x^2-0.868x+15.451 equation:


Simplifying
0 = 0.00868x2 + -0.868x + 15.451

Reorder the terms:
0 = 15.451 + -0.868x + 0.00868x2

Solving
0 = 15.451 + -0.868x + 0.00868x2

Solving for variable 'x'.

Combine like terms: 0 + -15.451 = -15.451
-15.451 + 0.868x + -0.00868x2 = 15.451 + -0.868x + 0.00868x2 + -15.451 + 0.868x + -0.00868x2

Reorder the terms:
-15.451 + 0.868x + -0.00868x2 = 15.451 + -15.451 + -0.868x + 0.868x + 0.00868x2 + -0.00868x2

Combine like terms: 15.451 + -15.451 = 0.000
-15.451 + 0.868x + -0.00868x2 = 0.000 + -0.868x + 0.868x + 0.00868x2 + -0.00868x2
-15.451 + 0.868x + -0.00868x2 = -0.868x + 0.868x + 0.00868x2 + -0.00868x2

Combine like terms: -0.868x + 0.868x = 0.000
-15.451 + 0.868x + -0.00868x2 = 0.000 + 0.00868x2 + -0.00868x2
-15.451 + 0.868x + -0.00868x2 = 0.00868x2 + -0.00868x2

Combine like terms: 0.00868x2 + -0.00868x2 = 0.00000
-15.451 + 0.868x + -0.00868x2 = 0.00000

Begin completing the square.  Divide all terms by
-0.00868 the coefficient of the squared term: 

Divide each side by '-0.00868'.
1780.069124 + -100x + x2 = 0

Move the constant term to the right:

Add '-1780.069124' to each side of the equation.
1780.069124 + -100x + -1780.069124 + x2 = 0 + -1780.069124

Reorder the terms:
1780.069124 + -1780.069124 + -100x + x2 = 0 + -1780.069124

Combine like terms: 1780.069124 + -1780.069124 = 0.000000
0.000000 + -100x + x2 = 0 + -1780.069124
-100x + x2 = 0 + -1780.069124

Combine like terms: 0 + -1780.069124 = -1780.069124
-100x + x2 = -1780.069124

The x term is -100x.  Take half its coefficient (-50).
Square it (2500) and add it to both sides.

Add '2500' to each side of the equation.
-100x + 2500 + x2 = -1780.069124 + 2500

Reorder the terms:
2500 + -100x + x2 = -1780.069124 + 2500

Combine like terms: -1780.069124 + 2500 = 719.930876
2500 + -100x + x2 = 719.930876

Factor a perfect square on the left side:
(x + -50)(x + -50) = 719.930876

Calculate the square root of the right side: 26.831527649

Break this problem into two subproblems by setting 
(x + -50) equal to 26.831527649 and -26.831527649.

Subproblem 1

x + -50 = 26.831527649 Simplifying x + -50 = 26.831527649 Reorder the terms: -50 + x = 26.831527649 Solving -50 + x = 26.831527649 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '50' to each side of the equation. -50 + 50 + x = 26.831527649 + 50 Combine like terms: -50 + 50 = 0 0 + x = 26.831527649 + 50 x = 26.831527649 + 50 Combine like terms: 26.831527649 + 50 = 76.831527649 x = 76.831527649 Simplifying x = 76.831527649

Subproblem 2

x + -50 = -26.831527649 Simplifying x + -50 = -26.831527649 Reorder the terms: -50 + x = -26.831527649 Solving -50 + x = -26.831527649 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '50' to each side of the equation. -50 + 50 + x = -26.831527649 + 50 Combine like terms: -50 + 50 = 0 0 + x = -26.831527649 + 50 x = -26.831527649 + 50 Combine like terms: -26.831527649 + 50 = 23.168472351 x = 23.168472351 Simplifying x = 23.168472351

Solution

The solution to the problem is based on the solutions from the subproblems. x = {76.831527649, 23.168472351}

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