3.142x^2-x-26(3.142)=0

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Solution for 3.142x^2-x-26(3.142)=0 equation:


Simplifying
3.142x2 + -1x + -26(3.142) = 0

Multiply -26 * 3.142
3.142x2 + -1x + -81.692 = 0

Reorder the terms:
-81.692 + -1x + 3.142x2 = 0

Solving
-81.692 + -1x + 3.142x2 = 0

Solving for variable 'x'.

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

Divide each side by '3.142'.
-26 + -0.3182686187x + x2 = 0

Move the constant term to the right:

Add '26' to each side of the equation.
-26 + -0.3182686187x + 26 + x2 = 0 + 26

Reorder the terms:
-26 + 26 + -0.3182686187x + x2 = 0 + 26

Combine like terms: -26 + 26 = 0
0 + -0.3182686187x + x2 = 0 + 26
-0.3182686187x + x2 = 0 + 26

Combine like terms: 0 + 26 = 26
-0.3182686187x + x2 = 26

The x term is -0.3182686187x.  Take half its coefficient (-0.1591343094).
Square it (0.02532372843) and add it to both sides.

Add '0.02532372843' to each side of the equation.
-0.3182686187x + 0.02532372843 + x2 = 26 + 0.02532372843

Reorder the terms:
0.02532372843 + -0.3182686187x + x2 = 26 + 0.02532372843

Combine like terms: 26 + 0.02532372843 = 26.02532372843
0.02532372843 + -0.3182686187x + x2 = 26.02532372843

Factor a perfect square on the left side:
(x + -0.1591343094)(x + -0.1591343094) = 26.02532372843

Calculate the square root of the right side: 5.101502105

Break this problem into two subproblems by setting 
(x + -0.1591343094) equal to 5.101502105 and -5.101502105.

Subproblem 1

x + -0.1591343094 = 5.101502105 Simplifying x + -0.1591343094 = 5.101502105 Reorder the terms: -0.1591343094 + x = 5.101502105 Solving -0.1591343094 + x = 5.101502105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1591343094' to each side of the equation. -0.1591343094 + 0.1591343094 + x = 5.101502105 + 0.1591343094 Combine like terms: -0.1591343094 + 0.1591343094 = 0.0000000000 0.0000000000 + x = 5.101502105 + 0.1591343094 x = 5.101502105 + 0.1591343094 Combine like terms: 5.101502105 + 0.1591343094 = 5.2606364144 x = 5.2606364144 Simplifying x = 5.2606364144

Subproblem 2

x + -0.1591343094 = -5.101502105 Simplifying x + -0.1591343094 = -5.101502105 Reorder the terms: -0.1591343094 + x = -5.101502105 Solving -0.1591343094 + x = -5.101502105 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1591343094' to each side of the equation. -0.1591343094 + 0.1591343094 + x = -5.101502105 + 0.1591343094 Combine like terms: -0.1591343094 + 0.1591343094 = 0.0000000000 0.0000000000 + x = -5.101502105 + 0.1591343094 x = -5.101502105 + 0.1591343094 Combine like terms: -5.101502105 + 0.1591343094 = -4.9423677956 x = -4.9423677956 Simplifying x = -4.9423677956

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.2606364144, -4.9423677956}

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