255x^2-85.915x+7.03545=0

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Solution for 255x^2-85.915x+7.03545=0 equation:


Simplifying
255x2 + -85.915x + 7.03545 = 0

Reorder the terms:
7.03545 + -85.915x + 255x2 = 0

Solving
7.03545 + -85.915x + 255x2 = 0

Solving for variable 'x'.

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

Divide each side by '255'.
0.02759 + -0.3369215686x + x2 = 0

Move the constant term to the right:

Add '-0.02759' to each side of the equation.
0.02759 + -0.3369215686x + -0.02759 + x2 = 0 + -0.02759

Reorder the terms:
0.02759 + -0.02759 + -0.3369215686x + x2 = 0 + -0.02759

Combine like terms: 0.02759 + -0.02759 = 0.00000
0.00000 + -0.3369215686x + x2 = 0 + -0.02759
-0.3369215686x + x2 = 0 + -0.02759

Combine like terms: 0 + -0.02759 = -0.02759
-0.3369215686x + x2 = -0.02759

The x term is -0.3369215686x.  Take half its coefficient (-0.1684607843).
Square it (0.02837903585) and add it to both sides.

Add '0.02837903585' to each side of the equation.
-0.3369215686x + 0.02837903585 + x2 = -0.02759 + 0.02837903585

Reorder the terms:
0.02837903585 + -0.3369215686x + x2 = -0.02759 + 0.02837903585

Combine like terms: -0.02759 + 0.02837903585 = 0.00078903585
0.02837903585 + -0.3369215686x + x2 = 0.00078903585

Factor a perfect square on the left side:
(x + -0.1684607843)(x + -0.1684607843) = 0.00078903585

Calculate the square root of the right side: 0.028089782

Break this problem into two subproblems by setting 
(x + -0.1684607843) equal to 0.028089782 and -0.028089782.

Subproblem 1

x + -0.1684607843 = 0.028089782 Simplifying x + -0.1684607843 = 0.028089782 Reorder the terms: -0.1684607843 + x = 0.028089782 Solving -0.1684607843 + x = 0.028089782 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1684607843' to each side of the equation. -0.1684607843 + 0.1684607843 + x = 0.028089782 + 0.1684607843 Combine like terms: -0.1684607843 + 0.1684607843 = 0.0000000000 0.0000000000 + x = 0.028089782 + 0.1684607843 x = 0.028089782 + 0.1684607843 Combine like terms: 0.028089782 + 0.1684607843 = 0.1965505663 x = 0.1965505663 Simplifying x = 0.1965505663

Subproblem 2

x + -0.1684607843 = -0.028089782 Simplifying x + -0.1684607843 = -0.028089782 Reorder the terms: -0.1684607843 + x = -0.028089782 Solving -0.1684607843 + x = -0.028089782 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1684607843' to each side of the equation. -0.1684607843 + 0.1684607843 + x = -0.028089782 + 0.1684607843 Combine like terms: -0.1684607843 + 0.1684607843 = 0.0000000000 0.0000000000 + x = -0.028089782 + 0.1684607843 x = -0.028089782 + 0.1684607843 Combine like terms: -0.028089782 + 0.1684607843 = 0.1403710023 x = 0.1403710023 Simplifying x = 0.1403710023

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.1965505663, 0.1403710023}

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