100x^2-x-10=0

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Solution for 100x^2-x-10=0 equation:


Simplifying
100x2 + -1x + -10 = 0

Reorder the terms:
-10 + -1x + 100x2 = 0

Solving
-10 + -1x + 100x2 = 0

Solving for variable 'x'.

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

Divide each side by '100'.
-0.1 + -0.01x + x2 = 0

Move the constant term to the right:

Add '0.1' to each side of the equation.
-0.1 + -0.01x + 0.1 + x2 = 0 + 0.1

Reorder the terms:
-0.1 + 0.1 + -0.01x + x2 = 0 + 0.1

Combine like terms: -0.1 + 0.1 = 0.0
0.0 + -0.01x + x2 = 0 + 0.1
-0.01x + x2 = 0 + 0.1

Combine like terms: 0 + 0.1 = 0.1
-0.01x + x2 = 0.1

The x term is -0.01x.  Take half its coefficient (-0.005).
Square it (0.000025) and add it to both sides.

Add '0.000025' to each side of the equation.
-0.01x + 0.000025 + x2 = 0.1 + 0.000025

Reorder the terms:
0.000025 + -0.01x + x2 = 0.1 + 0.000025

Combine like terms: 0.1 + 0.000025 = 0.100025
0.000025 + -0.01x + x2 = 0.100025

Factor a perfect square on the left side:
(x + -0.005)(x + -0.005) = 0.100025

Calculate the square root of the right side: 0.316267292

Break this problem into two subproblems by setting 
(x + -0.005) equal to 0.316267292 and -0.316267292.

Subproblem 1

x + -0.005 = 0.316267292 Simplifying x + -0.005 = 0.316267292 Reorder the terms: -0.005 + x = 0.316267292 Solving -0.005 + x = 0.316267292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.005' to each side of the equation. -0.005 + 0.005 + x = 0.316267292 + 0.005 Combine like terms: -0.005 + 0.005 = 0.000 0.000 + x = 0.316267292 + 0.005 x = 0.316267292 + 0.005 Combine like terms: 0.316267292 + 0.005 = 0.321267292 x = 0.321267292 Simplifying x = 0.321267292

Subproblem 2

x + -0.005 = -0.316267292 Simplifying x + -0.005 = -0.316267292 Reorder the terms: -0.005 + x = -0.316267292 Solving -0.005 + x = -0.316267292 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.005' to each side of the equation. -0.005 + 0.005 + x = -0.316267292 + 0.005 Combine like terms: -0.005 + 0.005 = 0.000 0.000 + x = -0.316267292 + 0.005 x = -0.316267292 + 0.005 Combine like terms: -0.316267292 + 0.005 = -0.311267292 x = -0.311267292 Simplifying x = -0.311267292

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.321267292, -0.311267292}

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