x^2-1.9x+0.52=0

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Solution for x^2-1.9x+0.52=0 equation:


Simplifying
x2 + -1.9x + 0.52 = 0

Reorder the terms:
0.52 + -1.9x + x2 = 0

Solving
0.52 + -1.9x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.52' to each side of the equation.
0.52 + -1.9x + -0.52 + x2 = 0 + -0.52

Reorder the terms:
0.52 + -0.52 + -1.9x + x2 = 0 + -0.52

Combine like terms: 0.52 + -0.52 = 0.00
0.00 + -1.9x + x2 = 0 + -0.52
-1.9x + x2 = 0 + -0.52

Combine like terms: 0 + -0.52 = -0.52
-1.9x + x2 = -0.52

The x term is -1.9x.  Take half its coefficient (-0.95).
Square it (0.9025) and add it to both sides.

Add '0.9025' to each side of the equation.
-1.9x + 0.9025 + x2 = -0.52 + 0.9025

Reorder the terms:
0.9025 + -1.9x + x2 = -0.52 + 0.9025

Combine like terms: -0.52 + 0.9025 = 0.3825
0.9025 + -1.9x + x2 = 0.3825

Factor a perfect square on the left side:
(x + -0.95)(x + -0.95) = 0.3825

Calculate the square root of the right side: 0.618465844

Break this problem into two subproblems by setting 
(x + -0.95) equal to 0.618465844 and -0.618465844.

Subproblem 1

x + -0.95 = 0.618465844 Simplifying x + -0.95 = 0.618465844 Reorder the terms: -0.95 + x = 0.618465844 Solving -0.95 + x = 0.618465844 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.95' to each side of the equation. -0.95 + 0.95 + x = 0.618465844 + 0.95 Combine like terms: -0.95 + 0.95 = 0.00 0.00 + x = 0.618465844 + 0.95 x = 0.618465844 + 0.95 Combine like terms: 0.618465844 + 0.95 = 1.568465844 x = 1.568465844 Simplifying x = 1.568465844

Subproblem 2

x + -0.95 = -0.618465844 Simplifying x + -0.95 = -0.618465844 Reorder the terms: -0.95 + x = -0.618465844 Solving -0.95 + x = -0.618465844 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.95' to each side of the equation. -0.95 + 0.95 + x = -0.618465844 + 0.95 Combine like terms: -0.95 + 0.95 = 0.00 0.00 + x = -0.618465844 + 0.95 x = -0.618465844 + 0.95 Combine like terms: -0.618465844 + 0.95 = 0.331534156 x = 0.331534156 Simplifying x = 0.331534156

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.568465844, 0.331534156}

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