x^2+0.08x-0.08=0

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Solution for x^2+0.08x-0.08=0 equation:


Simplifying
x2 + 0.08x + -0.08 = 0

Reorder the terms:
-0.08 + 0.08x + x2 = 0

Solving
-0.08 + 0.08x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '0.08' to each side of the equation.
-0.08 + 0.08x + 0.08 + x2 = 0 + 0.08

Reorder the terms:
-0.08 + 0.08 + 0.08x + x2 = 0 + 0.08

Combine like terms: -0.08 + 0.08 = 0.00
0.00 + 0.08x + x2 = 0 + 0.08
0.08x + x2 = 0 + 0.08

Combine like terms: 0 + 0.08 = 0.08
0.08x + x2 = 0.08

The x term is 0.08x.  Take half its coefficient (0.04).
Square it (0.0016) and add it to both sides.

Add '0.0016' to each side of the equation.
0.08x + 0.0016 + x2 = 0.08 + 0.0016

Reorder the terms:
0.0016 + 0.08x + x2 = 0.08 + 0.0016

Combine like terms: 0.08 + 0.0016 = 0.0816
0.0016 + 0.08x + x2 = 0.0816

Factor a perfect square on the left side:
(x + 0.04)(x + 0.04) = 0.0816

Calculate the square root of the right side: 0.285657137

Break this problem into two subproblems by setting 
(x + 0.04) equal to 0.285657137 and -0.285657137.

Subproblem 1

x + 0.04 = 0.285657137 Simplifying x + 0.04 = 0.285657137 Reorder the terms: 0.04 + x = 0.285657137 Solving 0.04 + x = 0.285657137 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.04' to each side of the equation. 0.04 + -0.04 + x = 0.285657137 + -0.04 Combine like terms: 0.04 + -0.04 = 0.00 0.00 + x = 0.285657137 + -0.04 x = 0.285657137 + -0.04 Combine like terms: 0.285657137 + -0.04 = 0.245657137 x = 0.245657137 Simplifying x = 0.245657137

Subproblem 2

x + 0.04 = -0.285657137 Simplifying x + 0.04 = -0.285657137 Reorder the terms: 0.04 + x = -0.285657137 Solving 0.04 + x = -0.285657137 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.04' to each side of the equation. 0.04 + -0.04 + x = -0.285657137 + -0.04 Combine like terms: 0.04 + -0.04 = 0.00 0.00 + x = -0.285657137 + -0.04 x = -0.285657137 + -0.04 Combine like terms: -0.285657137 + -0.04 = -0.325657137 x = -0.325657137 Simplifying x = -0.325657137

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.245657137, -0.325657137}

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