2x^2-19x+22=0

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


Simplifying
2x2 + -19x + 22 = 0

Reorder the terms:
22 + -19x + 2x2 = 0

Solving
22 + -19x + 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'.
11 + -9.5x + x2 = 0

Move the constant term to the right:

Add '-11' to each side of the equation.
11 + -9.5x + -11 + x2 = 0 + -11

Reorder the terms:
11 + -11 + -9.5x + x2 = 0 + -11

Combine like terms: 11 + -11 = 0
0 + -9.5x + x2 = 0 + -11
-9.5x + x2 = 0 + -11

Combine like terms: 0 + -11 = -11
-9.5x + x2 = -11

The x term is -9.5x.  Take half its coefficient (-4.75).
Square it (22.5625) and add it to both sides.

Add '22.5625' to each side of the equation.
-9.5x + 22.5625 + x2 = -11 + 22.5625

Reorder the terms:
22.5625 + -9.5x + x2 = -11 + 22.5625

Combine like terms: -11 + 22.5625 = 11.5625
22.5625 + -9.5x + x2 = 11.5625

Factor a perfect square on the left side:
(x + -4.75)(x + -4.75) = 11.5625

Calculate the square root of the right side: 3.400367627

Break this problem into two subproblems by setting 
(x + -4.75) equal to 3.400367627 and -3.400367627.

Subproblem 1

x + -4.75 = 3.400367627 Simplifying x + -4.75 = 3.400367627 Reorder the terms: -4.75 + x = 3.400367627 Solving -4.75 + x = 3.400367627 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + x = 3.400367627 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + x = 3.400367627 + 4.75 x = 3.400367627 + 4.75 Combine like terms: 3.400367627 + 4.75 = 8.150367627 x = 8.150367627 Simplifying x = 8.150367627

Subproblem 2

x + -4.75 = -3.400367627 Simplifying x + -4.75 = -3.400367627 Reorder the terms: -4.75 + x = -3.400367627 Solving -4.75 + x = -3.400367627 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4.75' to each side of the equation. -4.75 + 4.75 + x = -3.400367627 + 4.75 Combine like terms: -4.75 + 4.75 = 0.00 0.00 + x = -3.400367627 + 4.75 x = -3.400367627 + 4.75 Combine like terms: -3.400367627 + 4.75 = 1.349632373 x = 1.349632373 Simplifying x = 1.349632373

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.150367627, 1.349632373}

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