x^2-11x+17=0

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Solution for x^2-11x+17=0 equation:


Simplifying
x2 + -11x + 17 = 0

Reorder the terms:
17 + -11x + x2 = 0

Solving
17 + -11x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-17' to each side of the equation.
17 + -11x + -17 + x2 = 0 + -17

Reorder the terms:
17 + -17 + -11x + x2 = 0 + -17

Combine like terms: 17 + -17 = 0
0 + -11x + x2 = 0 + -17
-11x + x2 = 0 + -17

Combine like terms: 0 + -17 = -17
-11x + x2 = -17

The x term is -11x.  Take half its coefficient (-5.5).
Square it (30.25) and add it to both sides.

Add '30.25' to each side of the equation.
-11x + 30.25 + x2 = -17 + 30.25

Reorder the terms:
30.25 + -11x + x2 = -17 + 30.25

Combine like terms: -17 + 30.25 = 13.25
30.25 + -11x + x2 = 13.25

Factor a perfect square on the left side:
(x + -5.5)(x + -5.5) = 13.25

Calculate the square root of the right side: 3.640054945

Break this problem into two subproblems by setting 
(x + -5.5) equal to 3.640054945 and -3.640054945.

Subproblem 1

x + -5.5 = 3.640054945 Simplifying x + -5.5 = 3.640054945 Reorder the terms: -5.5 + x = 3.640054945 Solving -5.5 + x = 3.640054945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 3.640054945 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 3.640054945 + 5.5 x = 3.640054945 + 5.5 Combine like terms: 3.640054945 + 5.5 = 9.140054945 x = 9.140054945 Simplifying x = 9.140054945

Subproblem 2

x + -5.5 = -3.640054945 Simplifying x + -5.5 = -3.640054945 Reorder the terms: -5.5 + x = -3.640054945 Solving -5.5 + x = -3.640054945 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -3.640054945 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -3.640054945 + 5.5 x = -3.640054945 + 5.5 Combine like terms: -3.640054945 + 5.5 = 1.859945055 x = 1.859945055 Simplifying x = 1.859945055

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.140054945, 1.859945055}

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