2x^2-38x+5=0

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Solution for 2x^2-38x+5=0 equation:


Simplifying
2x2 + -38x + 5 = 0

Reorder the terms:
5 + -38x + 2x2 = 0

Solving
5 + -38x + 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'.
2.5 + -19x + x2 = 0

Move the constant term to the right:

Add '-2.5' to each side of the equation.
2.5 + -19x + -2.5 + x2 = 0 + -2.5

Reorder the terms:
2.5 + -2.5 + -19x + x2 = 0 + -2.5

Combine like terms: 2.5 + -2.5 = 0.0
0.0 + -19x + x2 = 0 + -2.5
-19x + x2 = 0 + -2.5

Combine like terms: 0 + -2.5 = -2.5
-19x + x2 = -2.5

The x term is -19x.  Take half its coefficient (-9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
-19x + 90.25 + x2 = -2.5 + 90.25

Reorder the terms:
90.25 + -19x + x2 = -2.5 + 90.25

Combine like terms: -2.5 + 90.25 = 87.75
90.25 + -19x + x2 = 87.75

Factor a perfect square on the left side:
(x + -9.5)(x + -9.5) = 87.75

Calculate the square root of the right side: 9.367496998

Break this problem into two subproblems by setting 
(x + -9.5) equal to 9.367496998 and -9.367496998.

Subproblem 1

x + -9.5 = 9.367496998 Simplifying x + -9.5 = 9.367496998 Reorder the terms: -9.5 + x = 9.367496998 Solving -9.5 + x = 9.367496998 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = 9.367496998 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = 9.367496998 + 9.5 x = 9.367496998 + 9.5 Combine like terms: 9.367496998 + 9.5 = 18.867496998 x = 18.867496998 Simplifying x = 18.867496998

Subproblem 2

x + -9.5 = -9.367496998 Simplifying x + -9.5 = -9.367496998 Reorder the terms: -9.5 + x = -9.367496998 Solving -9.5 + x = -9.367496998 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9.5' to each side of the equation. -9.5 + 9.5 + x = -9.367496998 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = -9.367496998 + 9.5 x = -9.367496998 + 9.5 Combine like terms: -9.367496998 + 9.5 = 0.132503002 x = 0.132503002 Simplifying x = 0.132503002

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.867496998, 0.132503002}

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