X^2+0.001X-0.01=0

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Solution for X^2+0.001X-0.01=0 equation:


Simplifying
X2 + 0.001X + -0.01 = 0

Reorder the terms:
-0.01 + 0.001X + X2 = 0

Solving
-0.01 + 0.001X + X2 = 0

Solving for variable 'X'.

Begin completing the square.

Move the constant term to the right:

Add '0.01' to each side of the equation.
-0.01 + 0.001X + 0.01 + X2 = 0 + 0.01

Reorder the terms:
-0.01 + 0.01 + 0.001X + X2 = 0 + 0.01

Combine like terms: -0.01 + 0.01 = 0.00
0.00 + 0.001X + X2 = 0 + 0.01
0.001X + X2 = 0 + 0.01

Combine like terms: 0 + 0.01 = 0.01
0.001X + X2 = 0.01

The X term is 0.001X.  Take half its coefficient (0.0005).
Square it (0.00000025) and add it to both sides.

Add '0.00000025' to each side of the equation.
0.001X + 0.00000025 + X2 = 0.01 + 0.00000025

Reorder the terms:
0.00000025 + 0.001X + X2 = 0.01 + 0.00000025

Combine like terms: 0.01 + 0.00000025 = 0.01000025
0.00000025 + 0.001X + X2 = 0.01000025

Factor a perfect square on the left side:
(X + 0.0005)(X + 0.0005) = 0.01000025

Calculate the square root of the right side: 0.10000125

Break this problem into two subproblems by setting 
(X + 0.0005) equal to 0.10000125 and -0.10000125.

Subproblem 1

X + 0.0005 = 0.10000125 Simplifying X + 0.0005 = 0.10000125 Reorder the terms: 0.0005 + X = 0.10000125 Solving 0.0005 + X = 0.10000125 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.0005' to each side of the equation. 0.0005 + -0.0005 + X = 0.10000125 + -0.0005 Combine like terms: 0.0005 + -0.0005 = 0.0000 0.0000 + X = 0.10000125 + -0.0005 X = 0.10000125 + -0.0005 Combine like terms: 0.10000125 + -0.0005 = 0.09950125 X = 0.09950125 Simplifying X = 0.09950125

Subproblem 2

X + 0.0005 = -0.10000125 Simplifying X + 0.0005 = -0.10000125 Reorder the terms: 0.0005 + X = -0.10000125 Solving 0.0005 + X = -0.10000125 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-0.0005' to each side of the equation. 0.0005 + -0.0005 + X = -0.10000125 + -0.0005 Combine like terms: 0.0005 + -0.0005 = 0.0000 0.0000 + X = -0.10000125 + -0.0005 X = -0.10000125 + -0.0005 Combine like terms: -0.10000125 + -0.0005 = -0.10050125 X = -0.10050125 Simplifying X = -0.10050125

Solution

The solution to the problem is based on the solutions from the subproblems. X = {0.09950125, -0.10050125}

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