x^2-19x+22=0

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Solution for x^2-19x+22=0 equation:


Simplifying
x2 + -19x + 22 = 0

Reorder the terms:
22 + -19x + x2 = 0

Solving
22 + -19x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-22' to each side of the equation.
22 + -19x + -22 + x2 = 0 + -22

Reorder the terms:
22 + -22 + -19x + x2 = 0 + -22

Combine like terms: 22 + -22 = 0
0 + -19x + x2 = 0 + -22
-19x + x2 = 0 + -22

Combine like terms: 0 + -22 = -22
-19x + x2 = -22

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 = -22 + 90.25

Reorder the terms:
90.25 + -19x + x2 = -22 + 90.25

Combine like terms: -22 + 90.25 = 68.25
90.25 + -19x + x2 = 68.25

Factor a perfect square on the left side:
(x + -9.5)(x + -9.5) = 68.25

Calculate the square root of the right side: 8.261355821

Break this problem into two subproblems by setting 
(x + -9.5) equal to 8.261355821 and -8.261355821.

Subproblem 1

x + -9.5 = 8.261355821 Simplifying x + -9.5 = 8.261355821 Reorder the terms: -9.5 + x = 8.261355821 Solving -9.5 + x = 8.261355821 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 = 8.261355821 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = 8.261355821 + 9.5 x = 8.261355821 + 9.5 Combine like terms: 8.261355821 + 9.5 = 17.761355821 x = 17.761355821 Simplifying x = 17.761355821

Subproblem 2

x + -9.5 = -8.261355821 Simplifying x + -9.5 = -8.261355821 Reorder the terms: -9.5 + x = -8.261355821 Solving -9.5 + x = -8.261355821 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 = -8.261355821 + 9.5 Combine like terms: -9.5 + 9.5 = 0.0 0.0 + x = -8.261355821 + 9.5 x = -8.261355821 + 9.5 Combine like terms: -8.261355821 + 9.5 = 1.238644179 x = 1.238644179 Simplifying x = 1.238644179

Solution

The solution to the problem is based on the solutions from the subproblems. x = {17.761355821, 1.238644179}

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