4x^2-2x-41=0

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Solution for 4x^2-2x-41=0 equation:


Simplifying
4x2 + -2x + -41 = 0

Reorder the terms:
-41 + -2x + 4x2 = 0

Solving
-41 + -2x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-10.25 + -0.5x + x2 = 0

Move the constant term to the right:

Add '10.25' to each side of the equation.
-10.25 + -0.5x + 10.25 + x2 = 0 + 10.25

Reorder the terms:
-10.25 + 10.25 + -0.5x + x2 = 0 + 10.25

Combine like terms: -10.25 + 10.25 = 0.00
0.00 + -0.5x + x2 = 0 + 10.25
-0.5x + x2 = 0 + 10.25

Combine like terms: 0 + 10.25 = 10.25
-0.5x + x2 = 10.25

The x term is -0.5x.  Take half its coefficient (-0.25).
Square it (0.0625) and add it to both sides.

Add '0.0625' to each side of the equation.
-0.5x + 0.0625 + x2 = 10.25 + 0.0625

Reorder the terms:
0.0625 + -0.5x + x2 = 10.25 + 0.0625

Combine like terms: 10.25 + 0.0625 = 10.3125
0.0625 + -0.5x + x2 = 10.3125

Factor a perfect square on the left side:
(x + -0.25)(x + -0.25) = 10.3125

Calculate the square root of the right side: 3.211308145

Break this problem into two subproblems by setting 
(x + -0.25) equal to 3.211308145 and -3.211308145.

Subproblem 1

x + -0.25 = 3.211308145 Simplifying x + -0.25 = 3.211308145 Reorder the terms: -0.25 + x = 3.211308145 Solving -0.25 + x = 3.211308145 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 3.211308145 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 3.211308145 + 0.25 x = 3.211308145 + 0.25 Combine like terms: 3.211308145 + 0.25 = 3.461308145 x = 3.461308145 Simplifying x = 3.461308145

Subproblem 2

x + -0.25 = -3.211308145 Simplifying x + -0.25 = -3.211308145 Reorder the terms: -0.25 + x = -3.211308145 Solving -0.25 + x = -3.211308145 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -3.211308145 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -3.211308145 + 0.25 x = -3.211308145 + 0.25 Combine like terms: -3.211308145 + 0.25 = -2.961308145 x = -2.961308145 Simplifying x = -2.961308145

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.461308145, -2.961308145}

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