x-5928910x^2=4

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Solution for x-5928910x^2=4 equation:


Simplifying
x + -5928910x2 = 4

Solving
x + -5928910x2 = 4

Solving for variable 'x'.

Reorder the terms:
-4 + x + -5928910x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-4 + x + -5928910x2 = 0

Begin completing the square.  Divide all terms by
-5928910 the coefficient of the squared term: 

Divide each side by '-5928910'.
0.0000006746602664 + -0.0000001686650666x + x2 = 0

Move the constant term to the right:

Add '-0.0000006746602664' to each side of the equation.
0.0000006746602664 + -0.0000001686650666x + -0.0000006746602664 + x2 = 0 + -0.0000006746602664

Reorder the terms:
0.0000006746602664 + -0.0000006746602664 + -0.0000001686650666x + x2 = 0 + -0.0000006746602664

Combine like terms: 0.0000006746602664 + -0.0000006746602664 = 0.0000000000000000
0.0000000000000000 + -0.0000001686650666x + x2 = 0 + -0.0000006746602664
-0.0000001686650666x + x2 = 0 + -0.0000006746602664

Combine like terms: 0 + -0.0000006746602664 = -0.0000006746602664
-0.0000001686650666x + x2 = -0.0000006746602664

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

Add '0.25' to each side of the equation.
-0.0000001686650666x + 0.25 + x2 = -0.0000006746602664 + 0.25

Reorder the terms:
0.25 + -0.0000001686650666x + x2 = -0.0000006746602664 + 0.25

Combine like terms: -0.0000006746602664 + 0.25 = 0.2499993253397336
0.25 + -0.0000001686650666x + x2 = 0.2499993253397336

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 0.2499993253397336

Calculate the square root of the right side: 0.499999325

Break this problem into two subproblems by setting 
(x + 0.5) equal to 0.499999325 and -0.499999325.

Subproblem 1

x + 0.5 = 0.499999325 Simplifying x + 0.5 = 0.499999325 Reorder the terms: 0.5 + x = 0.499999325 Solving 0.5 + x = 0.499999325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 0.499999325 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 0.499999325 + -0.5 x = 0.499999325 + -0.5 Combine like terms: 0.499999325 + -0.5 = -0.000000675 x = -0.000000675 Simplifying x = -0.000000675

Subproblem 2

x + 0.5 = -0.499999325 Simplifying x + 0.5 = -0.499999325 Reorder the terms: 0.5 + x = -0.499999325 Solving 0.5 + x = -0.499999325 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -0.499999325 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -0.499999325 + -0.5 x = -0.499999325 + -0.5 Combine like terms: -0.499999325 + -0.5 = -0.999999325 x = -0.999999325 Simplifying x = -0.999999325

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.000000675, -0.999999325}

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