2x^2-26x+3=0

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Solution for 2x^2-26x+3=0 equation:


Simplifying
2x2 + -26x + 3 = 0

Reorder the terms:
3 + -26x + 2x2 = 0

Solving
3 + -26x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
1.5 + -13x + x2 = 0

Move the constant term to the right:

Add '-1.5' to each side of the equation.
1.5 + -13x + -1.5 + x2 = 0 + -1.5

Reorder the terms:
1.5 + -1.5 + -13x + x2 = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + -13x + x2 = 0 + -1.5
-13x + x2 = 0 + -1.5

Combine like terms: 0 + -1.5 = -1.5
-13x + x2 = -1.5

The x term is -13x.  Take half its coefficient (-6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
-13x + 42.25 + x2 = -1.5 + 42.25

Reorder the terms:
42.25 + -13x + x2 = -1.5 + 42.25

Combine like terms: -1.5 + 42.25 = 40.75
42.25 + -13x + x2 = 40.75

Factor a perfect square on the left side:
(x + -6.5)(x + -6.5) = 40.75

Calculate the square root of the right side: 6.383572667

Break this problem into two subproblems by setting 
(x + -6.5) equal to 6.383572667 and -6.383572667.

Subproblem 1

x + -6.5 = 6.383572667 Simplifying x + -6.5 = 6.383572667 Reorder the terms: -6.5 + x = 6.383572667 Solving -6.5 + x = 6.383572667 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = 6.383572667 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = 6.383572667 + 6.5 x = 6.383572667 + 6.5 Combine like terms: 6.383572667 + 6.5 = 12.883572667 x = 12.883572667 Simplifying x = 12.883572667

Subproblem 2

x + -6.5 = -6.383572667 Simplifying x + -6.5 = -6.383572667 Reorder the terms: -6.5 + x = -6.383572667 Solving -6.5 + x = -6.383572667 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = -6.383572667 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = -6.383572667 + 6.5 x = -6.383572667 + 6.5 Combine like terms: -6.383572667 + 6.5 = 0.116427333 x = 0.116427333 Simplifying x = 0.116427333

Solution

The solution to the problem is based on the solutions from the subproblems. x = {12.883572667, 0.116427333}

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