x^2-19x+5=0

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Solution for x^2-19x+5=0 equation:


Simplifying
x2 + -19x + 5 = 0

Reorder the terms:
5 + -19x + x2 = 0

Solving
5 + -19x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -19x + -5 + x2 = 0 + -5

Reorder the terms:
5 + -5 + -19x + x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -19x + x2 = 0 + -5
-19x + x2 = 0 + -5

Combine like terms: 0 + -5 = -5
-19x + x2 = -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 = -5 + 90.25

Reorder the terms:
90.25 + -19x + x2 = -5 + 90.25

Combine like terms: -5 + 90.25 = 85.25
90.25 + -19x + x2 = 85.25

Factor a perfect square on the left side:
(x + -9.5)(x + -9.5) = 85.25

Calculate the square root of the right side: 9.233092656

Break this problem into two subproblems by setting 
(x + -9.5) equal to 9.233092656 and -9.233092656.

Subproblem 1

x + -9.5 = 9.233092656 Simplifying x + -9.5 = 9.233092656 Reorder the terms: -9.5 + x = 9.233092656 Solving -9.5 + x = 9.233092656 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 = 9.233092656 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = 9.233092656 + 9.5 x = 9.233092656 + 9.5 Combine like terms: 9.233092656 + 9.5 = 18.733092656 x = 18.733092656 Simplifying x = 18.733092656

Subproblem 2

x + -9.5 = -9.233092656 Simplifying x + -9.5 = -9.233092656 Reorder the terms: -9.5 + x = -9.233092656 Solving -9.5 + x = -9.233092656 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 = -9.233092656 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = -9.233092656 + 9.5 x = -9.233092656 + 9.5 Combine like terms: -9.233092656 + 9.5 = 0.266907344 x = 0.266907344 Simplifying x = 0.266907344

Solution

The solution to the problem is based on the solutions from the subproblems. x = {18.733092656, 0.266907344}

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